102-596: The Old Fire was a large complex wildfire that started on October 25, 2003 (the original Old Fire began on October 25), near Old Waterman Canyon Road and California State Route 18 in the San Bernardino Mountains , in San Bernardino County , Southern California , United States . The Old Fire caused at least $ 1.2 billion in damages. The Old Fire was one of 15 wildfires throughout Southern California that month, which became known as
204-529: A Marian apparition known as Our Lady of Guadalupe . In 2012, a controversy erupted regarding the cross atop Mount Rubidoux, which was on city-owned land and maintained by the city. Due to constitutional issues regarding separation of church and state, the Riverside City Council sold the cross and the land under it (0.43 acres; 1740.15 sq m) to a private entity for $ 10,500. Riverside's economy consists largely of light-industry and generates
306-570: A defensible space be maintained by clearing flammable materials within a prescribed distance from the structure. Communities in the Philippines also maintain fire lines 5 to 10 meters (16 to 33 ft) wide between the forest and their village, and patrol these lines during summer months or seasons of dry weather. Continued residential development in fire-prone areas and rebuilding structures destroyed by fires has been met with criticism. The ecological benefits of fire are often overridden by
408-914: A semi-arid climate ( Köppen climate classification BSh ) bordering on an arid climate ( Köppen climate classification BWh ) with hot, dry summers and mild, relatively wet winters. Normal monthly mean temperatures range from 54.8 °F (12.7 °C) in December to 79.8 °F (26.6 °C) in August. On average, temperatures reach the freezing mark and 100 °F (37.8 °C) on 3.5 and 21.6 days annually, respectively. Record temperatures range from 18 °F (−7.8 °C) on January 15, 1911, up to 118 °F (47.8 °C) on July 17, 1925, June 16, 1917, and July 6, 2018. On average, Riverside receives 9.39 in (239 mm) of precipitation annually, with measurable precipitation occurring on 35 days, with almost all of it between November and April, with February
510-469: A 15 mile radius. Additionally, Sensaio Tech , based in Brazil and Toronto, has released a sensor device that continuously monitors 14 different variables common in forests, ranging from soil temperature to salinity. This information is connected live back to clients through dashboard visualizations, while mobile notifications are provided regarding dangerous levels. Satellite and aerial monitoring through
612-470: A 24-hour fire day that begins at 10:00 a.m. due to the predictable increase in intensity resulting from the daytime warmth. Climate change promotes the type of weather that makes wildfires more likely. In some areas, an increase of wildfires has been attributed directly to climate change. Evidence from Earth's past also shows more fire in warmer periods. Climate change increases evapotranspiration . This can cause vegetation and soils to dry out. When
714-689: A California Gold Rush of a different kind: the establishment of the citrus industry, which is commemorated in the landscapes and exhibits of the California Citrus State Historic Park and the restored packing houses in the downtown's Marketplace district. By 1882, there were more than half a million citrus trees in California, almost half of which were in Riverside. The development of refrigerated railroad cars and innovative irrigation systems established Riverside as
816-663: A benefit for people. Modern forest management often engages in prescribed burns to mitigate fire risk and promote natural forest cycles. However, controlled burns can turn into wildfires by mistake. Wildfires can be classified by cause of ignition, physical properties, combustible material present, and the effect of weather on the fire. Wildfire severity results from a combination of factors such as available fuels, physical setting, and weather. Climatic cycles with wet periods that create substantial fuels, followed by drought and heat, often precede severe wildfires. These cycles have been intensified by climate change . Wildfires are
918-813: A better view of the Old Fire. The vehicle's catalytic converter reportedly sparked a second fire near Playground Road, which firefighters dubbed the Playground Fire. That fire quickly consumed forest land and became part of the Old Fire. Hope faced misdemeanor counts of causing the national forest to burn without a permit and one count of placing a vehicle in a dangerous area. The victims identified were Charles Howard Cunningham, 93, of San Bernardino; Ralph Eugene McWilliams, 67, of Cedar Glen; Chad Leo Williams, 70, of Crestline; James William McDermoth, 70, of San Bernardino; and Robert Norman Taylor, 54, of San Bernardino. All five victims died from indirect consequences of
1020-485: A common type of disaster in some regions, including Siberia (Russia), California (United States), British Columbia (Canada), and Australia . Areas with Mediterranean climates or in the taiga biome are particularly susceptible. Wildfires can severely impact humans and their settlements. Effects include for example the direct health impacts of smoke and fire, as well as destruction of property (especially in wildland–urban interfaces ), and economic losses. There
1122-610: A fire starts in an area with very dry vegetation, it can spread rapidly. Higher temperatures can also lengthen the fire season. This is the time of year in which severe wildfires are most likely, particularly in regions where snow is disappearing. Weather conditions are raising the risks of wildfires. But the total area burnt by wildfires has decreased. This is mostly because savanna has been converted to cropland , so there are fewer trees to burn. Climate variability including heat waves , droughts , and El Niño , and regional weather patterns, such as high-pressure ridges, can increase
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#17327753776211224-546: A new fire detection tool is in operation at the U.S. Department of Agriculture (USDA) Forest Service (USFS) which uses data from the Suomi National Polar-orbiting Partnership (NPP) satellite to detect smaller fires in more detail than previous space-based products. The high-resolution data is used with a computer model to predict how a fire will change direction based on weather and land conditions. In 2014, an international campaign
1326-415: A number expected to rise to 30,000 by 2050. The economic impact is also significant, with projected costs reaching $ 240 billion annually by 2050, surpassing other climate-related damages. Over the past century, wildfires have accounted for 20–25% of global carbon emissions, the remainder from human activities. Global carbon emissions from wildfires through August 2020 equaled the average annual emissions of
1428-656: A personal friend, William Saunders , a horticulturist at the United States Department of Agriculture in Washington, D.C. The trees came from Bahia, Brazil . The Bahia orange did not thrive in Florida , but its success in southern California was phenomenal. The three trees were planted on the Tibbets' property. One of them died after it was trampled by a cow during the first year it was planted. After
1530-545: A policy of allowing some wildfires to burn is the cheapest method and an ecologically appropriate policy for many forests, they tend not to take into account the economic value of resources that are consumed by the fire, especially merchantable timber. Some studies conclude that while fuels may also be removed by logging, such thinning treatments may not be effective at reducing fire severity under extreme weather conditions. Building codes in fire-prone areas typically require that structures be built of flame-resistant materials and
1632-445: A population of 303,871. The population density was 3,731.0 inhabitants per square mile (1,440.5/km ). The racial makeup of Riverside was 41.8% of Riverside's population was of Mexican descent, 1.1% Guatemalan, 1.0% Salvadoran, 0.7% Puerto Rican, 0.3% Cuban, 0.2% Nicaraguan, and 0.2% Colombian origin. Non-Hispanic Whites were 34.0% of the population in 2010, down from 82.1% in 1970. The Census reported that 292,322 people (96.2% of
1734-503: A possible resolution to human operator error. These systems may be semi- or fully automated and employ systems based on the risk area and degree of human presence, as suggested by GIS data analyses. An integrated approach of multiple systems can be used to merge satellite data, aerial imagery, and personnel position via Global Positioning System (GPS) into a collective whole for near-realtime use by wireless Incident Command Centers . A small, high risk area that features thick vegetation,
1836-679: A range of products including aircraft components, automotive parts, gas cylinders, electronic equipment, food products, and medical devices. Supporting the manufacturing sector are several industrial parks, including those in the Hunter Industrial Park, Sycamore Canyon Industrial Park and Airport Industrial Areas. As the county seat of Riverside County and the most populous city in the Inland Empire, Riverside also houses several legal, accounting, engineering, and banking firms. Citrus production and packing houses still exist within
1938-531: A rapid forward rate of spread (FROS) when burning through dense uninterrupted fuels. They can move as fast as 10.8 kilometres per hour (6.7 mph) in forests and 22 kilometres per hour (14 mph) in grasslands. Wildfires can advance tangential to the main front to form a flanking front, or burn in the opposite direction of the main front by backing . They may also spread by jumping or spotting as winds and vertical convection columns carry firebrands (hot wood embers) and other burning materials through
2040-695: A remote site and sent via overnight mail to the fire manager . During the Yellowstone fires of 1988 , a data station was established in West Yellowstone , permitting the delivery of satellite-based fire information in approximately four hours. Public hotlines, fire lookouts in towers, and ground and aerial patrols can be used as a means of early detection of forest fires. However, accurate human observation may be limited by operator fatigue , time of day, time of year, and geographic location. Electronic systems have gained popularity in recent years as
2142-446: A stone marker placed with the last tree. That tree still stands to this day inside a protective fence abutting what is now a major intersection. The trees thrived in the southern California climate and the navel orange industry grew rapidly. Many growers purchased bud wood and then grafted the cuttings to root stock. Within a few years, the successful cultivation of many thousands of the newly discovered Brazilian navel orange trees led to
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#17327753776212244-569: A strong human presence, or is close to a critical urban area can be monitored using a local sensor network . Detection systems may include wireless sensor networks that act as automated weather systems: detecting temperature, humidity, and smoke. These may be battery-powered, solar-powered, or tree-rechargeable : able to recharge their battery systems using the small electrical currents in plant material. Larger, medium-risk areas can be monitored by scanning towers that incorporate fixed cameras and sensors to detect smoke or additional factors such as
2346-779: A susceptible area: an ignition source is brought into contact with a combustible material such as vegetation that is subjected to enough heat and has an adequate supply of oxygen from the ambient air. A high moisture content usually prevents ignition and slows propagation, because higher temperatures are needed to evaporate any water in the material and heat the material to its fire point . Dense forests usually provide more shade, resulting in lower ambient temperatures and greater humidity , and are therefore less susceptible to wildfires. Less dense material such as grasses and leaves are easier to ignite because they contain less water than denser material such as branches and trunks. Plants continuously lose water by evapotranspiration , but water loss
2448-693: Is a city in and the county seat of Riverside County, California , United States, in the Inland Empire metropolitan area. It is named for its location beside the Santa Ana River . It is the most populous city in the Inland Empire and in Riverside County, and is about 50 miles (80 km) southeast of downtown Los Angeles . It is also part of the Greater Los Angeles area. Riverside is the 61st-most-populous city in
2550-679: Is also home to the Inland Empire Atheists and Agnostics organization. The city has a large population of Seventh-day Adventists , due to the presence of La Sierra University and proximity to Loma Linda near San Bernardino . There is also a large Mormon population, as well as in the San Bernardino area, as the Church of Jesus Christ of Latter-day Saints has missions in Riverside and Redlands near their temple . Several religious celebrations take place on top of
2652-448: Is also the potential for contamination of water and soil. At a global level, human practices have made the impacts of wildfire worse, with a doubling in land area burned by wildfires compared to natural levels. Humans have impacted wildfire through climate change (e.g. more intense heat waves and droughts ), land-use change , and wildfire suppression . The carbon released from wildfires can add to carbon dioxide concentrations in
2754-875: Is close to Orange County and Los Angeles County. Riverside is home to the historic Mission Inn , the Beaux-Arts style Riverside County Historic Courthouse (based on the Petit Palais in Paris, France), and the Riverside Fox Theater , where the first showing of the 1939 film Gone with the Wind took place. The theater was purchased by the city and refurbished as part of the Riverside Renaissance Initiative. The Fox Theater underwent extensive renovation and restoration, which
2856-666: Is home to the one surviving Parent Navel Orange Tree, from which all American West Coast navel orange trees are descended. There are three hospitals in Riverside. Riverside is also home to the Riverside Public Library system. Branches include: Arlanza, Arlington, La Sierra, Marcy, Main, Orange Terrace, Eastside Cybrary, and Casa Blanca. Convention facilities are available at several locations. The Riverside Convention Center , remodeled in 2014, offers 66,000 sq ft (6,100 m ) indoors and 14,000 sq ft (1,300 m ) of outdoor space. Also available
2958-544: Is next to the Santa Ana River and one of the most noticeable landmarks in the downtown area. This foothill is the dividing line between the town of Rubidoux and the city of Riverside. March Joint Air Reserve Base borders Riverside on the east serving as a divider between the city and Moreno Valley . March ARB, founded in 1918, is the oldest operating Air Force base west of the Mississippi River. At
3060-728: Is no longer an expectation, but the majority of wildfires are often extinguished before they grow out of control. While more than 99% of the 10,000 new wildfires each year are contained, escaped wildfires under extreme weather conditions are difficult to suppress without a change in the weather. Wildfires in Canada and the US burn an average of 54,500 square kilometers (13,000,000 acres) per year. Above all, fighting wildfires can become deadly. A wildfire's burning front may also change direction unexpectedly and jump across fire breaks. Intense heat and smoke can lead to disorientation and loss of appreciation of
3162-470: Is on Iowa Street just north of Palmyrita, in front of what was once the Dixie Corporation's manufacturing plant (now closed down). Three notable hills are in Riverside's scenic landscape: Box Springs Mountain , Evans (Jurupa) Hill and Tecolote Hill; all of which are preserved open spaces. South of Riverside is Lake Mathews . There is also the well-known landmark/foothill Mount Rubidoux , which
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3264-473: Is prone to offset errors, anywhere from 2 to 3 kilometers (1 to 2 mi) for MODIS and AVHRR data and up to 12 kilometers (7.5 mi) for GOES data. Satellites in geostationary orbits may become disabled, and satellites in polar orbits are often limited by their short window of observation time. Cloud cover and image resolution may also limit the effectiveness of satellite imagery. Global Forest Watch provides detailed daily updates on fire alerts. In 2015
3366-577: Is the Lake Hills/Victoria Grove area, which would extend the city's southwestern borders to Lake Mathews. Riverside is home to the University of California, Riverside . The UCR Botanical Gardens contains 40 acres (16 ha) of unusual plants, with four miles (6.4 km) of walking trails. The city prides itself on its historic connection to the navel orange, which was introduced to North America from Brazil in 1874. Riverside
3468-636: Is the Riverside Marriott with 14,000 sq ft (1,300 m ) indoors, and the Mission Inn with 15,000 sq ft (1,400 m ) indoors and 5,000 sq ft (460 m ) outdoors. All three facilities are located within walking distance of one another in downtown Riverside. Meetings with an academic focus are also held at the University of California, Riverside. Cemeteries in Riverside include: Riverside experiences
3570-557: Is the originally named "Eastside". which grew out of a colonia inhabited by Mexican immigrant workers in the orange groves, other orchards and produce fields. The area these people lived in was originally a settlement called La Placita that predated the city, being founded in 1843. Mexican communities were also formed in the barrio of Casa Blanca during the early 20th century. The city council has proposed many annexations of nearby unincorporated communities that would increase Riverside's population and land area significantly. Most notable
3672-416: Is usually balanced by water absorbed from the soil, humidity, or rain. When this balance is not maintained, often as a consequence of droughts , plants dry out and are therefore more flammable. A wildfire front is the portion sustaining continuous flaming combustion, where unburned material meets active flames, or the smoldering transition between unburned and burned material. As the front approaches,
3774-467: Is water. The elevation of downtown Riverside is 860 feet (260 m). Hills within the city limits include Mount Rubidoux , a city landmark and tourist attraction. Riverside is surrounded by small and large mountains, some of which get a dusting of winter snow. Many residents also enjoy the many beaches of Southern California. Riverside is about a 47-mile (76 km) drive to the Pacific Ocean and
3876-692: The 2023 Canadian wildfires false claims of arson gained traction on social media; however, arson is generally not a main cause of wildfires in Canada. In California, generally 6–10% of wildfires annually are arson. Coal seam fires burn in the thousands around the world, such as those in Burning Mountain , New South Wales; Centralia , Pennsylvania; and several coal-sustained fires in China . They can also flare up unexpectedly and ignite nearby flammable material. (Fire) Good luck deleting this, Frost! (Fire) The spread of wildfires varies based on
3978-965: The Amazon rainforest . The fires in the latter were caused mainly by illegal logging . The smoke from the fires expanded on huge territory including major cities, dramatically reducing air quality. As of August 2020, the wildfires in that year were 13% worse than in 2019 due primarily to climate change , deforestation and agricultural burning. The Amazon rainforest 's existence is threatened by fires. Record-breaking wildfires in 2021 occurred in Turkey , Greece and Russia , thought to be linked to climate change. The carbon released from wildfires can add to greenhouse gas concentrations. Climate models do not yet fully reflect this feedback . Wildfires release large amounts of carbon dioxide, black and brown carbon particles, and ozone precursors such as volatile organic compounds and nitrogen oxides (NOx) into
4080-569: The European Union . In 2020, the carbon released by California's wildfires was significantly larger than the state's other carbon emissions. Forest fires in Indonesia in 1997 were estimated to have released between 0.81 and 2.57 giga tonnes (0.89 and 2.83 billion short tons ) of CO 2 into the atmosphere, which is between 13–40% of the annual global carbon dioxide emissions from burning fossil fuels. In June and July 2019, fires in
4182-480: The Fire Information for Resource Management System (FIRMS). Between 2022–2023, wildfires throughout North America prompted an uptake in the delivery and design of various technologies using artificial intelligence for early detection, prevention, and prediction of wildfires. Wildfire suppression depends on the technologies available in the area in which the wildfire occurs. In less developed nations
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4284-841: The Galleria at Tyler mall. The Main Street Pedestrian Mall in downtown is the site of several unique shops. Several festivals occur throughout the year in Riverside, many focused on the downtown area. Each year in February The Riverside Dickens Festival is held to "enhance a sense of community among citizens of Riverside County and Southern California by creating a series of literary events and to provide educational, family-oriented, literary entertainment and activities such as plays, musical performances, pageants, living history presentations, workshops, lectures, classroom study, exhibits and
4386-504: The Paris climate agreement . Due to the complex oxidative chemistry occurring during the transport of wildfire smoke in the atmosphere, the toxicity of emissions was indicated to increase over time. Atmospheric models suggest that these concentrations of sooty particles could increase absorption of incoming solar radiation during winter months by as much as 15%. The Amazon is estimated to hold around 90 billion tons of carbon. As of 2019,
4488-410: The dry season . In middle latitudes , the most common human causes of wildfires are equipment generating sparks (chainsaws, grinders, mowers, etc.), overhead power lines , and arson . Arson may account for over 20% of human caused fires. However, in the 2019–20 Australian bushfire season "an independent study found online bots and trolls exaggerating the role of arson in the fires." In
4590-806: The "2003 Firestorm" and the "Fire Siege of 2003." This included the huge Cedar Fire , what was then the second-largest fire in California 's history after the Santiago Canyon Fire of 1889. Fanned by the Santa Ana winds , the Old Fire burned 91,281 acres (369.40 km), destroyed 993 homes, and caused six deaths. The fire threatened San Bernardino and Highland , as well as the mountain resort communities of Cedar Glen , Crestline , Running Springs and Lake Arrowhead and forcing upwards of 80,000 residents to evacuate their homes. Part of California State University, San Bernardino burned during
4692-628: The American Lung Association rated Riverside County one of the nation's worst counties for smog. Most of Riverside's smog problems are the result of the prevailing wind patterns that blow the smog from the Los Angeles Basin and particulates generated by southern California's multitude of vehicles, and the Port of Los Angeles and Port of Long Beach into the Inland Empire . The 2010 census reported that Riverside had
4794-463: The Arctic emitted more than 140 megatons of carbon dioxide, according to an analysis by CAMS. To put that into perspective this amounts to the same amount of carbon emitted by 36 million cars in a year. The recent wildfires and their massive CO 2 emissions mean that it will be important to take them into consideration when implementing measures for reaching greenhouse gas reduction targets accorded with
4896-483: The Old Fire and the part of the Grand Prix Fire that crossed into Los Angeles County was known as the "Padua Fire") was nearly $ 1.3 billion. Wildfire impacts are much higher when cleanup, watershed damages, and other costs are considered beyond the expenses for firefighting and property damage. About 750,000 acres (3,000 km) were blackened across five southern California counties. In 2009, Rickie Lee Fowler
4998-532: The Southern California Colony Association to promote the area's development. In March 1870, North distributed posters announcing the formation of a colony in California. North, a staunch temperance-minded abolitionist from New York State , had formerly founded Northfield, Minnesota . Riverside was temperance -minded, and Republican . There were four saloons in Riverside when it was founded. The license fees were raised until
5100-563: The United States and the 12th-most-populous city in California. As of the 2020 census , it had a population of 314,998. Along with San Bernardino , Riverside is a principal city in the nation's 13th-largest Metropolitan Statistical Area (MSA); the Riverside-San Bernardino-Ontario MSA (pop. 4,599,839) ranks in population just below San Francisco (4,749,008) and above Detroit (4,392,041). Riverside
5202-442: The United States in the early 20th century and fires were reported using telephones, carrier pigeons , and heliographs . Aerial and land photography using instant cameras were used in the 1950s until infrared scanning was developed for fire detection in the 1960s. However, information analysis and delivery was often delayed by limitations in communication technology. Early satellite-derived fire analyses were hand-drawn on maps at
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#17327753776215304-720: The Western US, earlier snowmelt and associated warming has also been associated with an increase in length and severity of the wildfire season, or the most fire-prone time of the year. A 2019 study indicates that the increase in fire risk in California may be partially attributable to human-induced climate change . In the summer of 1974–1975 (southern hemisphere), Australia suffered its worst recorded wildfire, when 15% of Australia's land mass suffered "extensive fire damage". Fires that summer burned up an estimated 117 million hectares (290 million acres ; 1,170,000 square kilometres ; 450,000 square miles ). In Australia,
5406-406: The age of 18 living with them, 50.3% were married couples living together, 14.8% had a female householder with no husband present, and 29.1% were non-families. 21.5% of all households were made up of individuals, and 7.2% had someone living alone who was 65 years of age or older. The average household size was 3.02 and the average family size was 3.54. In the city, 30.1% of the population was under
5508-459: The age of 18, 12.9% was from 18 to 24, 30.0% from 25 to 44, 18.0% from 45 to 64, and 9.0% was 65 years of age or older. The median age was 30 years. For every 100 females, there were 97.1 males. For every 100 females age 18 and over, there were 93.6 males. The median income for a household in the city was $ 41,646, and the median income for a family was $ 47,254. Males had a median income of $ 36,920 versus $ 28,328 for females. The per capita income for
5610-435: The air over roads, rivers, and other barriers that may otherwise act as firebreaks . Torching and fires in tree canopies encourage spotting, and dry ground fuels around a wildfire are especially vulnerable to ignition from firebrands. Spotting can create spot fires as hot embers and firebrands ignite fuels downwind from the fire. In Australian bushfires , spot fires are known to occur as far as 20 kilometres (12 mi) from
5712-732: The annual number of hot days (above 35 °C) and very hot days (above 40 °C) has increased significantly in many areas of the country since 1950. The country has always had bushfires but in 2019, the extent and ferocity of these fires increased dramatically. For the first time catastrophic bushfire conditions were declared for Greater Sydney. New South Wales and Queensland declared a state of emergency but fires were also burning in South Australia and Western Australia. In 2019, extreme heat and dryness caused massive wildfires in Siberia , Alaska , Canary Islands , Australia , and in
5814-470: The atmosphere and thus contribute to the greenhouse effect . This creates a climate change feedback . Naturally occurring wildfires can have beneficial effects on those ecosystems that have evolved with fire. In fact, many plant species depend on the effects of fire for growth and reproduction. The ignition of a fire takes place through either natural causes or human activity (deliberate or not). Natural occurrences that can ignite wildfires without
5916-444: The atmosphere. These emissions affect radiation, clouds, and climate on regional and even global scales. Wildfires also emit substantial amounts of semi-volatile organic species that can partition from the gas phase to form secondary organic aerosol (SOA) over hours to days after emission. In addition, the formation of the other pollutants as the air is transported can lead to harmful exposures for populations in regions far away from
6018-479: The burn evacuation areas who died of heart attacks. Although a sixth man also died of a heart attack after the fire was set, prosecutors could not link that death to the stress of the fire directly. The deaths of an additional fourteen people may be associated with this fire, killed two months later when a mudslide ripped through a camp in Waterman Canyon. A jury would later assign 30% of responsibility for
6120-477: The city limits. These include Airport, Alessandro Heights, Arlanza, Arlington , Arlington Heights, Arlington South, Canyon Crest , Casa Blanca , Downtown, Eastside , Grand, Hawarden Hills, Hillside Hunter Industrial Park, La Sierra, La Sierra Acres, La Sierra Hills, La Sierra South, Magnolia Center, Mission Grove, Northside, Orangecrest, Presidential Park, Ramona, Sycamore Canyon Park, Sycamore Canyon Springs, University, Victoria and Wood Streets. East of downtown
6222-523: The city was $ 17,882. 15.8% of the population and 11.7% of families were below the poverty line . Out of the total population, 18.9% of those under the age of 18 and 8.0% of those 65 and older were living below the poverty line. Religion in Riverside (2014) Riverside is largely Christian and is home to Catholic, Eastern Orthodox, Church of Jesus Christ of Latter Day Saints, Protestant, and Universalist Unitarian churches, an Islamic mosque, Jewish synagogue, Hindu temple, and several Buddhist temples. Riverside
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#17327753776216324-418: The city's Mount Rubidoux . One is an annual Easter Sunrise service , which is the nation's oldest continual non-denominational outdoor Easter service The 100th anniversary of the event was held April 12, 2009. Each December, a 2½-mile (4 km) procession from Our Lady of Guadalupe Shrine to the top of Mount Rubidoux promotes awareness of Juan Diego 's walk up Tepeyac hill, in 1531, where he reportedly saw
6426-432: The city, but the industry is in decline. American electronics company Bourns is among the companies based in Riverside. Citrus is in decline in many areas of the Inland Empire where urbanization and water scarcity have made the industry uneconomic. According to the city's 2018 Comprehensive Annual Financial Report, the top employers in the city are: Retail shopping centers include the open-air Riverside Plaza, and
6528-489: The city. The population density was 1,261.5/km (3,267/sq mi). There were 85,974 housing units at an average density of 425.0/km (1,101/sq mi). The racial makeup of the city was 59.3% White , 7.4% African American , 1.1% Native American , 5.68% Asian , 0.4% Pacific Islander , 21.0% from other races , and 5.1% from two or more races. 38.1% of the population were Hispanic or Latino of any race. There were 82,005 households, out of which 39.8% had children under
6630-736: The city. The university hosts the Riverside Sports Complex . Other attractions in Riverside include the Fox Performing Arts Center , Museum of Riverside , which houses exhibits and artifacts of local history, the California Museum of Photography , the California Citrus State Historic Park , Castle Park , and the Parent Washington Navel Orange Tree , the last of California's two original navel orange trees. In
6732-493: The deaths to CALTRANS , citing inadequate engineering of Highway 18. On January 21, 2010, the San Bernardino County prosecutor announced that he would seek the death penalty . Fowler then recanted his confession, saying that he had admitted to the crime only to appease authorities so that he could be transferred to a prison closer to his mother. In September 2011, Fowler moved to dismiss the indictment because
6834-612: The direction of the fire, which can make fires particularly dangerous. For example, during the 1949 Mann Gulch fire in Montana , United States, thirteen smokejumpers died when they lost their communication links, became disoriented, and were overtaken by the fire. In the Australian February 2009 Victorian bushfires , at least 173 people died and over 2,029 homes and 3,500 structures were lost when they became engulfed by wildfire. Riverside, California Riverside
6936-697: The earth's atmosphere has 415 parts per million of carbon, and the destruction of the Amazon would add about 38 parts per million. Some research has shown wildfire smoke can have a cooling effect. Research in 2007 stated that black carbon in snow changed temperature three times more than atmospheric carbon dioxide. As much as 94 percent of Arctic warming may be caused by dark carbon on snow that initiates melting. The dark carbon comes from fossil fuels burning, wood and other biofuels, and forest fires. Melting can occur even at low concentrations of dark carbon (below five parts per billion)". Wildfire prevention refers to
7038-411: The economic and safety benefits of protecting structures and human life. The demand for timely, high-quality fire information has increased in recent years. Fast and effective detection is a key factor in wildfire fighting. Early detection efforts were focused on early response, accurate results in both daytime and nighttime, and the ability to prioritize fire danger. Fire lookout towers were used in
7140-419: The entrance to Riverside from the 60 freeway sits Fairmount Park . This extensive urban oasis was designed by the firm founded by Frederick Law Olmsted , which had designed New York's Central Park. It includes a stocked pond that is home to many species of birds. On nearby private land is the former site of Spring Rancheria, a Cahuilla village. The city of Riverside has 28 designated "neighborhoods" within
7242-666: The fire due to heart attacks brought on by physical or emotional strain. Wildfire A wildfire , forest fire , or a bushfire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation . Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire ( in Australia ), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or veld fire. Some natural forest ecosystems depend on wildfire. Wildfires are different from controlled or prescribed burning , which are carried out to provide
7344-402: The fire front. Especially large wildfires may affect air currents in their immediate vicinities by the stack effect : air rises as it is heated, and large wildfires create powerful updrafts that will draw in new, cooler air from surrounding areas in thermal columns . Great vertical differences in temperature and humidity encourage pyrocumulus clouds , strong winds, and fire whirls with
7446-417: The fire heats both the surrounding air and woody material through convection and thermal radiation . First, wood is dried as water is vaporized at a temperature of 100 °C (212 °F). Next, the pyrolysis of wood at 230 °C (450 °F) releases flammable gases. Finally, wood can smolder at 380 °C (720 °F) or, when heated sufficiently, ignite at 590 °C (1,000 °F). Even before
7548-475: The fire. The fire was fully contained on November 2, 2003, with the help of rain and snow. The final cost of fighting the fire was $ 42 million. The Lake Arrowhead community is now part of a Redevelopment Agency, which a Board of Supervisors controls. A United States Forest Service report on the "true" combined costs of the 2003 Old Fire, Padua, and the Grand Prix wildfires (the Grand Prix Fire merged with
7650-452: The flames of a wildfire arrive at a particular location, heat transfer from the wildfire front warms the air to 800 °C (1,470 °F), which pre-heats and dries flammable materials, causing materials to ignite faster and allowing the fire to spread faster. High-temperature and long-duration surface wildfires may encourage flashover or torching : the drying of tree canopies and their subsequent ignition from below. Wildfires have
7752-421: The flammable material present, its vertical arrangement and moisture content, and weather conditions. Fuel arrangement and density is governed in part by topography , as land shape determines factors such as available sunlight and water for plant growth. Overall, fire types can be generally characterized by their fuels as follows: Wildfires occur when all the necessary elements of a fire triangle come together in
7854-441: The force of tornadoes at speeds of more than 80 kilometres per hour (50 mph). Rapid rates of spread, prolific crowning or spotting, the presence of fire whirls, and strong convection columns signify extreme conditions. Intensity also increases during daytime hours. Burn rates of smoldering logs are up to five times greater during the day due to lower humidity, increased temperatures, and increased wind speeds. Sunlight warms
7956-454: The ground during the day which creates air currents that travel uphill. At night the land cools, creating air currents that travel downhill. Wildfires are fanned by these winds and often follow the air currents over hills and through valleys. Fires in Europe occur frequently during the hours of 12:00 p.m. and 2:00 p.m. Wildfire suppression operations in the United States revolve around
8058-495: The infrared signature of carbon dioxide produced by fires. Additional capabilities such as night vision , brightness detection, and color change detection may also be incorporated into sensor arrays . The Department of Natural Resources signed a contract with PanoAI for the installation of 360 degree 'rapid detection' cameras around the Pacific northwest, which are mounted on cell towers and are capable of 24/7 monitoring of
8160-477: The involvement of humans include lightning , volcanic eruptions , sparks from rock falls, and spontaneous combustions . Sources of human-caused fire may include arson, accidental ignition, or the uncontrolled use of fire in land-clearing and agriculture such as the slash-and-burn farming in Southeast Asia. In the tropics , farmers often practice the slash-and-burn method of clearing fields during
8262-583: The late 18th century and the early 19th century, the area was inhabited by Cahuilla and the Serrano people . Californios such as Bernardo Yorba and Juan Bandini established ranches during the first half of the 19th century. In the 1860s, Louis Prevost launched the California Silk Center Association , a short-lived experiment in sericulture . In the wake of its failure, John W. North purchased some of its land and formed
8364-660: The population) lived in households, 8,925 (2.9%) lived in non-institutionalized group quarters, and 2,624 (0.9%) were institutionalized. There were 91,932 households, out of which 38,939 (42.4%) had children under the age of 18 living in them, 45,398 (49.4%) were opposite-sex married couples living together, 13,845 (15.1%) had a female householder with no husband present, 6,372 (6.9%) had a male householder with no wife present. There were 6,392 (7.0%) unmarried opposite-sex partnerships , and 746 (0.8%) same-sex married couples or partnerships . 18,284 households (19.9%) were made up of individuals, and 6,262 (6.8%) had someone living alone who
8466-484: The preemptive methods aimed at reducing the risk of fires as well as lessening its severity and spread. Prevention techniques aim to manage air quality, maintain ecological balances, protect resources, and to affect future fires. Prevention policies must consider the role that humans play in wildfires, since, for example, 95% of forest fires in Europe are related to human involvement. Wildfire prevention programs around
8568-520: The prosecutors had failed to present exculpatory evidence to the grand jury . In January 2012, he was reportedly discussing a plea bargain , but no plea bargain was reached and the case went to trial. The trial started in July 2012 in San Bernardino , having been rescheduled from January. Prosecutors charged with special circumstances which can bring the death penalty. On August 15, 2012, Fowler
8670-525: The richest city in the United States (in terms of income per capita) by 1895. Riverside is the 61st-largest city in the United States, the 12th-largest city in California, and the largest city in California's Inland Empire metro area. According to the United States Census Bureau , the city has an area of 81.4 square miles (210.8 km ), of which 81.1 square miles (210 km ) is land and 0.3 square miles (0.78 km ) (0.37%)
8772-404: The risk and alter the behavior of wildfires dramatically. Years of high precipitation can produce rapid vegetation growth, which when followed by warmer periods can encourage more widespread fires and longer fire seasons. High temperatures dry out the fuel loads and make them more flammable, increasing tree mortality and posing significant risks to global forest health. Since the mid-1980s, in
8874-461: The saloons moved out of Riverside. Investors from England and Canada transplanted traditions and activities adopted by prosperous citizens. As a result, the first golf course and polo field in southern California were built in Riverside. The first orange trees were planted in 1871, with the citrus industry Riverside is famous for beginning three years later (1874) when Eliza Tibbets received three Brazilian navel orange trees sent to her by
8976-399: The techniques used can be as simple as throwing sand or beating the fire with sticks or palm fronds. In more advanced nations, the suppression methods vary due to increased technological capacity. Silver iodide can be used to encourage snow fall, while fire retardants and water can be dropped onto fires by unmanned aerial vehicles , planes , and helicopters . Complete fire suppression
9078-470: The trampling, the two remaining trees were transplanted to property belonging to Sam McCoy to receive better care than L.C. Tibbets, Eliza's husband, could provide. Later, the trees were again transplanted, one at the Mission Inn property in 1903 by President Theodore Roosevelt (this tree died in 1922), and the other at the intersection of Magnolia and Arlington avenues. Eliza Tibbets was honored with
9180-936: The use of planes, helicopter, or UAVs can provide a wider view and may be sufficient to monitor very large, low risk areas. These more sophisticated systems employ GPS and aircraft-mounted infrared or high-resolution visible cameras to identify and target wildfires. Satellite-mounted sensors such as Envisat 's Advanced Along Track Scanning Radiometer and European Remote-Sensing Satellite 's Along-Track Scanning Radiometer can measure infrared radiation emitted by fires, identifying hot spots greater than 39 °C (102 °F). The National Oceanic and Atmospheric Administration 's Hazard Mapping System combines remote-sensing data from satellite sources such as Geostationary Operational Environmental Satellite (GOES), Moderate-Resolution Imaging Spectroradiometer (MODIS), and Advanced Very High Resolution Radiometer (AVHRR) for detection of fire and smoke plume locations. However, satellite detection
9282-587: The wettest month. The wettest “rain year” was from July 1940 to June 1941 with 22.72 inches or 577.1 millimetres and the driest from July 1960 to June 1961 with only 2.79 inches or 70.9 millimetres. The Riverside area faces issues of smog and above-average levels of air pollution . In a comparison by the National Campaign Against Dirty Air Power (2003), the Riverside- San Bernardino - Ontario area
9384-411: The wildfires. While direct emissions of harmful pollutants can affect first responders and residents, wildfire smoke can also be transported over long distances and impact air quality across local, regional, and global scales. The health effects of wildfire smoke, such as worsening cardiovascular and respiratory conditions, extend beyond immediate exposure, contributing to nearly 16,000 annual deaths,
9486-519: The world may employ techniques such as wildland fire use (WFU) and prescribed or controlled burns . Wildland fire use refers to any fire of natural causes that is monitored but allowed to burn. Controlled burns are fires ignited by government agencies under less dangerous weather conditions. Other objectives can include maintenance of healthy forests, rangelands, and wetlands, and support of ecosystem diversity. Strategies for wildfire prevention, detection, control and suppression have varied over
9588-466: The years. One common and inexpensive technique to reduce the risk of uncontrolled wildfires is controlled burning : intentionally igniting smaller less-intense fires to minimize the amount of flammable material available for a potential wildfire. Vegetation may be burned periodically to limit the accumulation of plants and other debris that may serve as fuel, while also maintaining high species diversity. While other people claim that controlled burns and
9690-455: Was 2.4%; the rental vacancy rate was 7.4%. 168,888 people (55.6% of the population) lived in owner-occupied housing units and 123,434 people (40.6%) lived in rental housing units. According to the 2010 United States Census, Riverside had a median household income of $ 56,403, with 17.5% of the population living below the federal poverty line. As of the census of 2000, there were 255,166 people, 82,005 households, and 58,141 families residing in
9792-724: Was 65 years of age or older. The average household size was 3.18. There were 65,615 families (71.4% of all households); the average family size was 3.67. There were 81,406 people (26.8%) under the age of 18, 47,126 (15.5%) aged 18 to 24, 82,482 (27.1%) aged 25 to 44, 66,615 (21.9%) aged 45 to 64, and 26,242 (8.6%) who were 65 years of age or older. The median age was 30.0 years. For every 100 females, there were 97.6 males. For every 100 females age 18 and over, there were 95.4 males. There were 98,444 housing units at an average density of 1,208.7 units per square mile (466.7 units/km ), of which 51,185 (55.7%) were owner-occupied, and 40,747 (44.3%) were occupied by renters. The homeowner vacancy rate
9894-568: Was charged with igniting the Old Fire. Authorities charged that he was a passenger in a white van seen leaving the area where the fire started, and that Fowler was the person seen throwing a lit flare into brush by the side of the road. The driver of the van, Martin David Valdez, Jr., died of a gunshot wound in 2006. A grand jury indicted Fowler on October 19, 2009, with one count of arson of an inhabited structure, one count of aggravated arson, and five counts of murder, based on five residents in
9996-480: Was completed in 2009, to turn the old cinema into a performing arts theater. The building was expanded to hold 1,600 seats and the stage was enlarged to accommodate Broadway-style performances. In January 2010, singer Sheryl Crow opened the newly remodeled Fox Theater in a nearly sold-out show. Riverside is the home of the "World's Largest Paper Cup" (actually made of concrete), which is over three stories (68.10 ft; 20.76 m ) tall. The " Dixie Cup " landmark
10098-507: Was convicted of five counts of murder and two counts of arson. On September 28, 2012, the jury returned a verdict of death. The death verdict was affirmed by the trial judge on January 28, 2013. On August 7, 2007, local newspapers reported that 25-year-old Jeremiah D. Hope of Riverside , faced federal charges for starting a blaze that eventually merged with the Old Fire. Authorities said Hope had been evacuated from his Crestline home when he and some friends off-roaded onto dry vegetation to get
10200-613: Was found to be one of the most polluted regions based on year-round particle measurements when compared to other U.S. cities. The city made efforts to reduce pollution by incorporating additional means of mass transit ( Metrolink ) and equipping its entire fleet of buses with natural gas . Smog decreased considerably over the next few years as local municipalities and counties worked with the South Coast Air Quality Management District to implement measures to improve regional air quality. In 2020,
10302-688: Was founded in the early 1870s. It is the birthplace of the California citrus industry and home of the Mission Inn , the nation's largest Mission Revival Style building. It is also home to the Riverside National Cemetery and the Eastern Division of the Federal District Court for the Central District of California. The University of California, Riverside , is in the northeastern part of
10404-794: Was organized in South Africa's Kruger National Park to validate fire detection products including the new VIIRS active fire data. In advance of that campaign, the Meraka Institute of the Council for Scientific and Industrial Research in Pretoria, South Africa, an early adopter of the VIIRS 375 m fire product, put it to use during several large wildfires in Kruger. Since 2021 NASA has provided active fire locations in near real-time via
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