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78-859: Coordinates : 47°40′35″N 9°7′40″E / 47.67639°N 9.12778°E / 47.67639; 9.12778 Naturschutzgebiet Wollmatinger Ried [REDACTED] Aerial photograph of the Wollmatinger Ried (centre) [REDACTED] Nearest city Konstanz Coordinates 47°40′35″N 9°7′40″E / 47.67639°N 9.12778°E / 47.67639; 9.12778 Area 7.67 km Established 1930 / 1938 Ramsar Wetland Official name Bodensee: Wollmatinger Ried - Giehrenmoos & Mindelsee Designated 26 February 1976 Reference no. 89 The nature reserve of Wollmatinger Ried – Untersee – Gnadensee
156-505: A tan ϕ {\displaystyle \textstyle {\tan \beta ={\frac {b}{a}}\tan \phi }\,\!} ; for the GRS 80 and WGS 84 spheroids, b a = 0.99664719 {\textstyle {\tfrac {b}{a}}=0.99664719} . ( β {\displaystyle \textstyle {\beta }\,\!} is known as the reduced (or parametric) latitude ). Aside from rounding, this
234-575: A Frankish imperial palace ( Königspfalz ), Alamannian ducal seat and mint , which is why the name may have been transferred to the lake ("lake, by which Bodman is situated" = Bodmansee ). From 833/834 AD, in Latin sources, the name appears in its Latinised form lacus potamicus . Therefore, the name actually derived from the Bodman Pfalz (Latinized as Potamum ) was wrongly assumed by monastic scholars like Walahfrid Strabo to be derived from
312-460: A datum transformation such as a Helmert transformation , although in certain situations a simple translation may be sufficient. Datums may be global, meaning that they represent the whole Earth, or they may be local, meaning that they represent an ellipsoid best-fit to only a portion of the Earth. Examples of global datums include World Geodetic System (WGS 84, also known as EPSG:4326 ),
390-514: A foothold and was then exported into other languages such as Hebrew: ימת קונסטנץ yamat Konstanz and Swahili: Ziwa la Konstanz . In many languages both forms exist in parallel e.g. Romansh : Lai da Constanza and Lai Bodan , Esperanto: Konstanca Lago and Bodenlago . The poetic name, " Swabian Sea", was adopted by authors of the early modern era and the Enlightenment from ancient authors, possibly Tacitus . However, this assumption
468-608: A point on Earth's surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses (often called great circles ), which converge at the North and South Poles. The meridian of the British Royal Observatory in Greenwich , in southeast London, England, is the international prime meridian , although some organizations—such as
546-473: A region of the surface of the Earth. Some newer datums are bound to the center of mass of the Earth. This combination of mathematical model and physical binding mean that anyone using the same datum will obtain the same location measurement for the same physical location. However, two different datums will usually yield different location measurements for the same physical location, which may appear to differ by as much as several hundred meters; this not because
624-759: A treaty was drawn up between the Hohenstaufen emperor and the Lombard League . Lake Constance also played an important role as a trading post for goods being traded between German and Italian states. During the Thirty Years' War , there were various conflicts over the control of the region during the Lake War (1632–1648). After the War of the Second Coalition (1798–1802), which also affected
702-411: Is 6,367,449 m . Since the Earth is an oblate spheroid , not spherical, that result can be off by several tenths of a percent; a better approximation of a longitudinal degree at latitude ϕ {\displaystyle \phi } is where Earth's equatorial radius a {\displaystyle a} equals 6,378,137 m and tan β = b
780-480: Is 110.6 km. The circles of longitude, meridians, meet at the geographical poles, with the west–east width of a second naturally decreasing as latitude increases. On the Equator at sea level, one longitudinal second measures 30.92 m, a longitudinal minute is 1855 m and a longitudinal degree is 111.3 km. At 30° a longitudinal second is 26.76 m, at Greenwich (51°28′38″N) 19.22 m, and at 60° it
858-522: Is 15.42 m. On the WGS 84 spheroid, the length in meters of a degree of latitude at latitude ϕ (that is, the number of meters you would have to travel along a north–south line to move 1 degree in latitude, when at latitude ϕ ), is about The returned measure of meters per degree latitude varies continuously with latitude. Similarly, the length in meters of a degree of longitude can be calculated as (Those coefficients can be improved, but as they stand
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#1732772867212936-684: Is 251.14 metres (824.0 ft) deep. The three small bays on the Vorarlberg shore have their own names: the Bay of Bregenz, off Hard and Fußach is the Bay of Fussach and, west of that is the Wetterwinkel. Farther west, now in Switzerland, is the Bay of Rorschach. To the north, on the Bavarian side, is the Bay of Reutin. The railway embankment from the mainland to the island of Lindau and
1014-485: Is 395 m (1,296 ft) above sea level . Its greatest depth is 252 metres (827 ft), exactly in the middle of the Upper Lake. Its volume is about 48 km (12 cu mi). The lake has two parts. The main east section, called Obersee or "Upper Lake", covers about 473 square kilometres (183 sq mi), including its northwestern arm, the Überlinger See (61 km (24 sq mi)), and
1092-779: Is a Zungenbecken or Tongue lake. After the end of the last glacial period , about 10,000 years ago, the Obersee and Untersee still formed a single lake. The downward erosion of the High Rhine caused the lake level to gradually sink and a sill, the Konstanzer Schwelle , to emerge. The Rhine, the Bregenzer Ach , and the Dornbirner Ach carry sediments from the Alps to the lake, thus gradually decreasing
1170-793: Is a protected area on the shores of Lake Constance in Germany . It has an area of 767 hectares and is the largest and most important nature reserve on the German side of Lake Constance. It is rich in plant and animal species and extends from the banks of the Seerhein river west of Constance via the causeway to the Island of Reichenau in the Untersee to the eastern Gnadensee near Allensbach -Hegne. The nearby offshore islands of Triboldingerbohl (Langenrain) and Mittler or Langbohl (Kopf) are part of
1248-563: Is also known for its intensive cultivation of fruit and vegetables . The island of Lindau is located in the east of the Obersee, and is the second largest island. On it is the old town and main railway station of Lindau. The third largest island is Mainau in the southeast of Lake Überlingen. The owners, the family of Bernadotte , have set up the island as a tourist attraction and created botanical gardens and wildlife enclosures. Relatively large, but uninhabited and inaccessible because of their status as nature reserves, are two islands off
1326-751: Is an important source of drinking water for southwestern Germany. The culminating point of the lake's drainage basin is the Swiss peak Piz Russein of the Tödi massif of the Glarus Alps at 3,613 metres (11,854 ft) above sea level. It starts with the creek Aua da Russein (lit.: "Water of the Russein"). Lake Constance was formed by the Rhine Glacier during the Quaternary glaciation ice age and
1404-524: Is around 11,500 km (4,400 sq mi), and reaching as far south as Lago di Lei in Italy. The area of the Obersee , or Upper Lake, is 473 km (183 sq mi). It extends from Bregenz to Bodman-Ludwigshafen for over 63.3 kilometres (39.3 mi) and is 14 kilometres (8.7 mi) wide between Friedrichshafen and Romanshorn . At its deepest point between Fischbach and Uttwil , it
1482-456: Is known as a graticule . The origin/zero point of this system is located in the Gulf of Guinea about 625 km (390 mi) south of Tema , Ghana , a location often facetiously called Null Island . In order to use the theoretical definitions of latitude, longitude, and height to precisely measure actual locations on the physical earth, a geodetic datum must be used. A horizonal datum
1560-475: Is on Wikidata Pages using the Kartographer extension Geographic coordinate system A geographic coordinate system ( GCS ) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude . It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms
1638-599: Is situated where Germany , Switzerland , and Austria meet. Its shorelines lie in the German states of Baden-Württemberg and Bavaria ; the Swiss cantons of St. Gallen , Thurgau , and Schaffhausen ; and the Austrian state of Vorarlberg . The actual locations of the country borders within the lake are disputed. The Alpine Rhine forms, in its original course ( Alter Rhein ), the Austro-Swiss border and flows into
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#17327728672121716-671: Is the Zeller See (or Zellersee in Swiss Standard German), or Lake Zell . North of the peninsula and swamp land Mettnau lies the lake part Markelfinger Winkel. The drumlins of the southern Bodanrück continue along the bed of these northern parts of the lake. South of the Reichenau, from Gottlieben to Eschenz , stretches the Rheinsee (lit.: "Rhine Lake") with strong Rhine currents in places. Previously this lake part
1794-744: Is the exact distance along a parallel of latitude; getting the distance along the shortest route will be more work, but those two distances are always within 0.6 m of each other if the two points are one degree of longitude apart. Like any series of multiple-digit numbers, latitude-longitude pairs can be challenging to communicate and remember. Therefore, alternative schemes have been developed for encoding GCS coordinates into alphanumeric strings or words: These are not distinct coordinate systems, only alternative methods for expressing latitude and longitude measurements. Lake Constance Lake Constance ( German : Bodensee , pronounced [ˈboːdn̩zeː] ) refers to three bodies of water on
1872-465: Is used to precisely measure latitude and longitude, while a vertical datum is used to measure elevation or altitude. Both types of datum bind a mathematical model of the shape of the earth (usually a reference ellipsoid for a horizontal datum, and a more precise geoid for a vertical datum) to the earth. Traditionally, this binding was created by a network of control points , surveyed locations at which monuments are installed, and were only accurate for
1950-591: The Council of Constance in the 15th century, the alternative name Lacus Constantinus was used in the (Roman Catholic) Romance language area. This name, which had been attested as early as 1187 in the form Lacus Constantiensis , came from the town of Konstanz at the outflow of the Rhine from the Obersee, whose original name, Constantia, was in turn derived from the Roman emperor, Constantius Chlorus (around 300 AD). Hence
2028-757: The Gnadensee (lit.: "Lake Mercy") north of the island and north of the peninsula of Mettnau (the Markelfinger Winkel ), and the Zeller See , south of Radolfzell and to the northwest of the Reichenau island, and the mainly Swiss Rheinsee (lit.: "Lake Rhine") – not to be mistaken for the Seerhein (lit.: "Rhine of the Lake(s)") at its start – to the south of the island and with its southwestern arm leading to its effluent in Stein am Rhein . The water of
2106-585: The Hallstatt period is attested by grave mounds , which today are usually found in forests where they have been protected from the destruction by agriculture. Since the late Hallstatt period, the peoples living on Lake Constance are referred to as the Celts . During the La Tène period from 450 BC, the population density decreases, as can be deduced partly due from the fact that no more grave mounds were built. For
2184-481: The International Date Line , which diverges from it in several places for political and convenience reasons, including between far eastern Russia and the far western Aleutian Islands . The combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The visual grid on a map formed by lines of latitude and longitude
2262-631: The Mesolithic period (Middle Stone Age, 8,000–5,500 BC) frequented the area without settling, however. Only hunting camps have been confirmed. The earliest Neolithic farmers, who belonged to the Linear Pottery culture , also left no traces behind, because the Alpine foreland lay away from the routes along which they had spread during the 6th millennium BC. This changed only in the middle and late Neolithic when shore settlements were established,
2340-773: The Radolfzeller Aach . The source of the Radolfzeller Aach is the Aachtopf , a karst spring whose waters mostly derive from the Danube Sinkhole . Therefore, the Danube is indirectly also a tributary of the Rhine. Because the Alpine Rhine brings with it drift from the mountains and deposits this material as sediment , the Bay of Bregenz will silt up in a few centuries time. The silting up of
2418-629: The Rhine at the northern foot of the Alps : Upper Lake Constance ( Obersee ), Lower Lake Constance ( Untersee ), and a connecting stretch of the Rhine, called the Seerhein ( lit. ' Rhine of the lake(s) ' ). These waterbodies lie within the Lake Constance Basin ( Bodenseebecken ) in the Alpine Foreland through which the Rhine flows. The nearby Mindelsee is not considered part of Lake Constance. The lake
Wollmatinger Ried - Misplaced Pages Continue
2496-601: The Wollmatinger Ried : the Triboldingerbohl which has an area of 13 ha (32 acres) and Mittler or Langbohl which is just three hectares (7.4 acres) in area. Smaller islands in the Obersee are: In the Untersee are: In Lake Constance there are several peninsulas which vary greatly in size: The shores of Lake Constance consist mainly of gravel. In some places there are also sandy beaches, such as
2574-537: The regulated Alpine Rhine flows into the lake in the southeast near Bregenz , Austria, then through the Upper Lake Constance hardly targeting the Überlinger See , into the Seerhein in the town of Konstanz , then through the Rheinsee virtually without feeding both German parts of the Lower Lake, and finally feeds the start of the High Rhine in Swiss town Stein am Rhein . The lake itself
2652-526: The 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically plotted world map using coordinates measured east from a prime meridian at the westernmost known land, designated the Fortunate Isles , off the coast of western Africa around the Canary or Cape Verde Islands , and measured north or south of the island of Rhodes off Asia Minor . Ptolemy credited him with
2730-402: The Austrian railways had already introduced CET the previous year and Switzerland followed in 1894. Because traffic timetables had not been yet updated, CET became the sole valid time around and on Lake Constance in 1895. The earliest recorded reference to the lakes is by Roman geographer Pomponius Mela around 43 AD, calling the upper lake Lacus Venetus and the lower lake Lacus Acronius ,
2808-516: The Bavarian Munich time was observed, and Bregenz used Prague time, while the Swiss shore used Berne time. One would have needed to travel only 46 kilometres (29 mi) to visit five time zones. Given the amount of trade and traffic over Lake Constance, this led to serious confusion. Public clocks in harbors used three different clock faces, depending on the destinations offered by the boat companies. In 1892, all German territories used CET ,
2886-506: The Earth's surface move relative to each other due to continental plate motion, subsidence, and diurnal Earth tidal movement caused by the Moon and the Sun. This daily movement can be as much as a meter. Continental movement can be up to 10 cm a year, or 10 m in a century. A weather system high-pressure area can cause a sinking of 5 mm . Scandinavia is rising by 1 cm a year as a result of
2964-729: The European ED50 , and the British OSGB36 . Given a location, the datum provides the latitude ϕ {\displaystyle \phi } and longitude λ {\displaystyle \lambda } . In the United Kingdom there are three common latitude, longitude, and height systems in use. WGS 84 differs at Greenwich from the one used on published maps OSGB36 by approximately 112 m. The military system ED50 , used by NATO , differs from about 120 m to 180 m. Points on
3042-536: The French Institut national de l'information géographique et forestière —continue to use other meridians for internal purposes. The prime meridian determines the proper Eastern and Western Hemispheres , although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E. This is not to be conflated with
3120-653: The French: Lac de Constance , Italian: Lago di Costanza , Portuguese: Lago de Constança , Spanish: Lago de Constanza , Romanian: Lacul Constanța , Greek: Λίμνη της Κωνσταντίας – Limni tis Konstantias . The Arabic, بحيرة كونستانس buħaira Konstans and the Turkish, Konstanz gölü , probably go back to the French form of the name. Even in Romance-influenced English the name "Lake Constance" gained
3198-644: The Greek word potamos for "river" and meant "river lake". They may also have been influenced by the fact that the Rhine flowed through the lake. Wolfram von Eschenbach describes it in Middle High German as the Bodemensee or Bodemsee which has finally evolved into the present German name, Bodensee . The name may be linked to that of the Bodanrück , the hill range between Lake Überlingen and
Wollmatinger Ried - Misplaced Pages Continue
3276-586: The Lower Lake is Radolfzell . The largest islands are Reichenau in the Lower Lake, and Lindau and Mainau in the Upper Lake. Bodanrück , a large peninsula, separates the Upper and Lower Lake. While in English and in the Romance languages , the lake is named after the city of Constance , the German name derives from the village of Bodman (municipality of Bodman-Ludwigshafen ), in the northwesternmost corner of
3354-473: The Lower Lake, and the history of the House of Bodman . The German name of the lake, Bodensee , has been adopted by many other languages, for example: Dutch: Bodenmeer , Danish: Bodensøen , Norwegian: Bodensjøen , Swedish: Bodensjön , Finnish: Bodenjärvi , Russian: Боденское озеро , Polish: Jezioro Bodeńskie , Czech: Bodamské jezero , Slovak: Bodamské jazero , Hungarian: Bodeni-tó , Serbo-Croatian: Bodensko jezero , Albanian: Liqeni i Bodenit . After
3432-399: The Obersee are (counterclockwise) the Dornbirner Ach , Bregenzer Ach , Leiblach , Argen , Schussen , Rotach , Brunnisach , Seefelder Aach , Stockacher Aach , Salmsacher Aach , the Aach near Arbon , Steinach , Goldach and the Old Rhine . The outflow of the Obersee is the Seerhein , which in turn is the main tributary of the Untersee. The most important tributary of the Untersee is
3510-437: The Rhine boundary in the 3rd century BC, the Alemanni gradually settled on the north shore of Lake Constance and, later, on the south bank as well. After the introduction of Christianity , the cultural significance of the region grew as a result of the founding of Reichenau Abbey and the Bishopric of Constance . Under the rule of the Hohenstaufens , Imperial Diets ( Reichstage ) were held by Lake Constance. In Constance, too,
3588-440: The Rhine passing through both. Around 75 AD, The naturalist Pliny the Elder called them both Lacus Raetiae Brigantinus after the main Roman town on the lake, Brigantium (later Bregenz). This name is associated with the Celtic Brigantii who lived here, although it is not clear whether the place was named after the tribe or the inhabitants of the region were named after their main settlement. Ammianus Marcellinus later used
3666-421: The Upper Lake runs approximately along the line between the southeast tip of Bodanrück (the Hörnle , which belongs to the town of Konstanz) and Meersburg. The Constance Hopper lies between the German and Swiss shores east of Konstanz . The Obersee and Untersee are connected by the Seerhein . The Untersee , or Lower Lake, which is separated from the Obersee and from its north-west arm, the Überlinger See, by
3744-482: The basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system , the geographic coordinate system is not cartesian because the measurements are angles and are not on a planar surface. A full GCS specification, such as those listed in the EPSG and ISO 19111 standards, also includes a choice of geodetic datum (including an Earth ellipsoid ), as different datums will yield different latitude and longitude values for
3822-464: The center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels , as they are parallel to the Equator and to each other. The North Pole is 90° N; the South Pole is 90° S. The 0° parallel of latitude is designated the Equator , the fundamental plane of all geographic coordinate systems. The Equator divides the globe into Northern and Southern Hemispheres . The longitude λ of
3900-400: The default datum used for the Global Positioning System , and the International Terrestrial Reference System and Frame (ITRF), used for estimating continental drift and crustal deformation . The distance to Earth's center can be used both for very deep positions and for positions in space. Local datums chosen by a national cartographical organization include the North American Datum ,
3978-432: The depth and reducing the extension of the lake in the southeast. In antiquity, the two lakes had different names; later, for reasons which are unknown, they came to have the same name. In the 19th century, there were five different local time zones around Lake Constance. Constance, belonging to the Grand Duchy of Baden , adhered to Karlsruhe time, Friedrichshafen used the time of the Duchy of Württemberg , in Lindau,
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#17327728672124056-490: The distance they give is correct within a centimeter.) The formulae both return units of meters per degree. An alternative method to estimate the length of a longitudinal degree at latitude ϕ {\displaystyle \phi } is to assume a spherical Earth (to get the width per minute and second, divide by 60 and 3600, respectively): where Earth's average meridional radius M r {\displaystyle \textstyle {M_{r}}\,\!}
4134-475: The entire Lake Constance is estimated to take another ten to twenty thousand years. The outflow of the Untersee is the High Rhine with the Rhine Falls at Schaffhausen . Both the average precipitation of 0.45 km /a and evaporation which averages 0.29 km /a cause a net change in the level of Lake Constance that is less when compared to the influence of the inflows and outflows. Further quantities of lake water are extracted by municipal waterworks around
4212-417: The first time, written reports on Lake Constance have survived. Thus, we learn that the Helvetians settled by the lake in the south, the Rhaetians in the area of the Alpine Rhine Valley and the Vindelici in the north-east. The most important places on the lake were Bregenz (Celtic Brigantion ) and today's Constance . In the course of the Roman Alpine campaign of 16/15 BC, the Lake Constance region
4290-420: The first time. The most important Roman site was Bregenz, which soon became subject to Roman municipal law and later became the seat of the Prefect of the Lake Constance fleet. The Romans were also in Lindau , but settled only on the hills around Lindau as the lakeshore was swampy. Other Roman towns were Constantia (Constance) and Arbor Felix ( Arbon ). After the borders of the Roman Empire were drawn back to
4368-419: The form Lacus Brigantiae . The current German name of Bodensee derives from the place name Bodman , which probably originally derived from the Old High German bodamon which meant "on the soils", indicating a place on level terrain by the lake. This place, situated at the west end of Lake Überlingen ( Überlinger See ), had a more supraregional character for a certain period in the early Middle Ages as
4446-414: The full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day. Ptolemy's 2nd-century Geography used the same prime meridian but measured latitude from the Equator instead. After their work was translated into Arabic in the 9th century, Al-Khwārizmī 's Book of the Description of the Earth corrected Marinus' and Ptolemy's errors regarding
4524-419: The lake and the water company of Bodensee-Wasserversorgung . In Lake Constance there are ten islands that are larger than 2,000 m (22,000 sq ft). By far the largest is the island of Reichenau in the Untersee, which belongs to the municipality of Reichenau . The former abbey of Reichenau is a UNESCO World Heritage Site due to its three early and highly medieval churches. The island
4602-476: The lake from the south. The High Rhine flows westbound out of the lake and forms (with the exception of the Canton of Schaffhausen , Rafzerfeld and Basel-Stadt ) the German-Swiss border as far as to the city of Basel . The Leiblach forms the Austria–Germany border east of the lake. The most populous towns on the Upper Lake are Constance ( German : Konstanz ), Friedrichshafen , Bregenz , Lindau , Überlingen and Kreuzlingen . The largest town on
4680-474: The lake. Lake Constance is located along the Rhine between the Alpine Rhine , its main tributary , and the High Rhine , its outflow. It is the third largest freshwater lake by surface area in Central and Western Europe (and the second largest in volume), after Lake Geneva and (in surface area) Lake Balaton . It is 63 km (39 mi) long, and, nearly 14 km (8.7 mi) at its widest point. It covers about 536 km (207 sq mi), and
4758-410: The large peninsula of Bodanrück , has an area of 63 km (24 sq mi). It is strongly characterised and divided into different areas by end moraines , various glacial snouts and medial moraines . These various areas of the lake have their own names. North of Reichenau Island is the Gnadensee . West of the island of Reichenau, between the peninsula of Höri and the peninsula of Mettnau
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#17327728672124836-499: The larger rivers, especially that of the Alpine Rhine. The silting up process is accelerated by ever-increasing erosion by the Rhine and the associated reduction in the level of the lake. The main tributary of Lake Constance is the Alpine Rhine . The Alpine Rhine and the Seerhein do not mix greatly with the waters of the lake and flow through the lakes along courses that change relatively little. There are also numerous smaller tributaries (236 in all). The most important tributaries of
4914-511: The length of the Mediterranean Sea , causing medieval Arabic cartography to use a prime meridian around 10° east of Ptolemy's line. Mathematical cartography resumed in Europe following Maximus Planudes ' recovery of Ptolemy's text a little before 1300; the text was translated into Latin at Florence by Jacopo d'Angelo around 1407. In 1884, the United States hosted the International Meridian Conference , attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt
4992-461: The location has moved, but because the reference system used to measure it has shifted. Because any spatial reference system or map projection is ultimately calculated from latitude and longitude, it is crucial that they clearly state the datum on which they are based. For example, a UTM coordinate based on WGS84 will be different than a UTM coordinate based on NAD27 for the same location. Converting coordinates from one datum to another requires
5070-461: The longitude of the Royal Observatory in Greenwich , England as the zero-reference line. The Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911. The latitude ϕ of a point on Earth's surface is the angle between the equatorial plane and the straight line that passes through that point and through (or close to)
5148-415: The melting of the ice sheets of the last ice age , but neighboring Scotland is rising by only 0.2 cm . These changes are insignificant if a local datum is used, but are statistically significant if a global datum is used. On the GRS 80 or WGS 84 spheroid at sea level at the Equator, one latitudinal second measures 30.715 m , one latitudinal minute is 1843 m and one latitudinal degree
5226-450: The middle of the former Duchy of Swabia , which also included parts of today's Switzerland. Today the name Swabian Sea ( Schwäbisches Meer ) is only used jocularly as a hyperbolic term for Lake Constance. No Paleolithic finds have been made in the immediate vicinity of the lake, because the region of Lake Constance was long covered by the Rhine Glacier . The discovery of stone tools ( microliths ) indicate that hunters and gatherers of
5304-400: The motorway bridge over the lake border the so-called Little Lake ( Kleiner See ), which is located between the Lindau village of Aeschach and the island. The northwestern, finger-shaped arm of the Obersee is called Überlinger See (or Überlingersee in Swiss Standard German ), or Lake Überlingen . It is sometimes regarded as a separate lake, the boundary between Lake Überlingen and the rest of
5382-523: The region and during which Austrian and French flotillas operated on Lake Constance, there was a reorganisation of state relationships. Lake Constance is located in the foothills of the Alps . The shore length of both main lakes is 273 kilometres (170 mi) long. Of this, 173 kilometres (107 mi) are located in Germany ( Baden-Württemberg 155 kilometres or 96 miles, Bavaria 18 kilometres or 11 miles), 28 kilometres (17 mi) run through Austria and 72 kilometres (45 mi) through Switzerland. If
5460-7356: The reserve. Literature [ edit ] Bezirksstelle für Naturschutz und Landschaftspflege Freiburg (2004). Die Naturschutzgebiete im Regierungsbezirk Freiburg [ The nature reserves in the administrative district of Freiburg ] (2nd, rev. and exp. ed.). Ostfildern: Thorbecke. pp. 406–412. ISBN 978-3-7995-5174-8 . Sources [ edit ] nabu-wollmatingerried.de: Das Wollmatinger Ried Regierungspräsidium Freiburg : Faltblatt zum Naturschutzgebiet Wollmatinger Ried References [ edit ] ^ "Bodensee: Wollmatinger Ried - Giehrenmoos & Mindelsee" . Ramsar Sites Information Service . Retrieved 25 April 2018 . External links [ edit ] [REDACTED] Wikimedia Commons has media related to Naturschutzgebiet Wollmatinger Ried – Untersee – Gnadensee . www.nabu-wollmatingerried.de v t e Lake Constance ( Bodensee ) Austria Vorarlberg Bregenz Germany Baden-Württemberg Bodenseekreis Konstanz Bavaria Lindau Switzerland Appenzell Ausserrhoden Schaffhausen St. Gallen Rorschach Thurgau Arbon Frauenfeld Kreuzlingen Settlements Austria Bregenz Hard Höchst Hörbranz Fussach Gaissau Lochau Germany Allensbach Bodman-Ludwigshafen Eriskirch Friedrichshafen Gaienhofen Hagnau Immenstaad Konstanz Dingelsdorf Litzelstetten Paradies Petershausen Wallhausen Kressbronn Langenargen Lindau Meersburg Moos Nonnenhorn Öhningen Radolfzell Reichenau Sipplingen Stetten Überlingen Hödingen Uhldingen-Mühlhofen Unteruhldingen Wasserburg Switzerland Altnau Arbon Berlingen Bottighofen Egnach Ermatingen Triboltingen Eschenz Frasnacht Goldach Gottlieben Güttingen Heiden Horn Kesswil Kreuzlingen Lutzenberg Mammern Münsterlingen Romanshorn Rorschach Rorschacherberg Salmsach Salenstein Steinach Steckborn Stein am Rhein Tägerwilen Tägermoos Thal Uttwil Walzenhausen Wolfhalden [REDACTED] [REDACTED] [REDACTED] Islands Bodanrück Peninsula Dominicans Island Entlibühl Galgeninsel Hoy Liebesinsel Lindau Mainau Mettnau Peninsula Reichenau Triboldingerbohl Vogelinsel Werd Rivers Aach Argen Bregenzer Ach Brunnisach Dornbirner Ach Leiblach Lipbach Radolfzeller Aach Rhine Alpine Rhine Alter Rhein High Rhine Seerhein Rotach Schussen Seefelder Aach Stockacher Aach Valleys Marien Gorge Spetzgarter Gorge Mountains Allgäu Alps Pfänder Appenzell Alps Bregenz Forest Mountains Hegau Hohenkrähen Hohenstoffeln Hohentwiel Schiener Berg Seerücken Landmarks Obersee Bay of Bregenz Constance Hopper Überlinger See Rhine Delta Untersee Gnadensee Markelfinger Winkel Rheinsee Wollmatinger Ried Zeller See Buildings Alt Dettingen Castle Arbon Castle Arenenberg Castle Bernegg Castle Castell Castle Eugensberg Castle Freudenfels Castle Gottlieben Castle Heiligenberg Castle Hohenfels Castle Hohenklingen Castle Hohentwiel Castle Konstanz Minster Louisenberg Castle Mammern Castle Meersburg Castle New Castle (Meersburg) Petershausen Abbey Reichenau Abbey Seeburg Castle Wettingen-Mehrerau Abbey Touristic Bregenzer Festspiele Pile Dwellings Museum Sea Life (Konstanz) Zeppelin Museum Transportation Altenrhein Airport Friedrichshafen Airport Pfänderbahn Train Ferries Railway Bodensee–Toggenburg Railway Gürtelbahn International Rhine Regulation Railway Rheineck–Walzenhausen Mountain Railway Rorschach–Heiden Railway Seehas SWEG Thurbo Chur–Rorschach S2 S4 S5 S7 Friedrichshafen–Lindau RB 93 High Rhine Line S6 RE 2 Lake Line S1 S7 S14 S44 RE1 Radolfzell–Mengen RB 31 S 61 IRE 3 Stahringen–Friedrichshafen RB 31 IRE 3 St. Margrethen–Lauterach S3 S7 R5 Vorarlberg Line S1 S3 S7 S-Bahn Bodensee St. Gallen Vorarlberg Stations Allensbach Altnau Arbon Arbon Seemoosriet Berlingen Bermatingen-Ahausen Bottighofen Bregenz Bregenz Hafen Bregenz Riedenburg Egnach Enzisweiler Eriskirch Ermatingen Eschenz Friedrichshafen Stadt Friedrichshafen-Fischbach Friedrichshafen Hafen Friedrichshafen Kluftern Friedrichshafen Landratsamt Friedrichshafen-Manzell Friedrichshafen Ost Güttingen Hard-Fussach Hegne Heiden Horn Kesswil Kreuzlingen Kreuzlingen Hafen Konstanz Konstanz-Fürstenberg Konstanz-Petershausen Konstanz-Wollmatingen Kressbronn Kurzrickenbach Seepark Landschlacht Langenargen Lauterach Unterfeld Lindau-Aeschach Lindau-Insel Lindau-Reutin Lochau-Hörbranz Ludwigshafen (Bodensee) Lustenau Mammern Mannenbach-Salenstein Markdorf (Baden) Markelfingen Münsterlingen-Scherzingen Münsterlingen Spital Nonnenhorn Nussdorf Radolfzell Reichenau (Baden) Rheineck Rorschach Rorschach Hafen Romanshorn Ruderbach Salem (Baden) Sandbüchel Schwendi bei Heiden Seebleiche Sipplingen Staad Stahringen Steckborn Stein am Rhein Steinach St. Margrethen Tägerwilen-Gottlieben Triboltingen Überlingen Überlingen Therme Uhldingen-Mühlhofen Uttwil Walzenhausen Wartensee Wasserburg Wienacht-Tobel Films Jezioro Bodeńskie People Henry Dunant Ferdinand von Zeppelin Retrieved from " https://en.wikipedia.org/w/index.php?title=Wollmatinger_Ried&oldid=1225609302 " Categories : Geography of Lake Constance Nature reserves in Baden-Württemberg Natura 2000 in Germany IUCN Category IV Konstanz (district) Ramsar sites in Germany Hidden categories: Pages using gadget WikiMiniAtlas Infobox mapframe without OSM relation ID on Wikidata Coordinates on Wikidata Commons category link
5538-458: The same location. The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene , who composed his now-lost Geography at the Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses , rather than dead reckoning . In
5616-435: The smaller west section, called Untersee or "Lower Lake", with an area of about 63 square kilometres (24 sq mi). The connection between these two lakes is the Seerhein (lit.: "Rhine of the Lake(s)"). Geographically, usually it is not considered to be part of the lake, but a very short river. The Lower Lake Constance is loosely divided into three sections around the Island of Reichenau . The two German parts,
5694-473: The so-called pile dwelling and wetland settlements , which have now been uncovered mainly on Lake Überlingen, the Constance Hopper and on the Obersee. At Unteruhldingen , a pile dwelling village has been reconstructed, and now forms an open air museum. In 2015, a 20 km line of about 170 man-made under-water stone mounds [ de ] dated in the neolithic period or early Bronze Age
5772-651: The upper and lower lakes are combined, Lake Constance has a total area of 536 km (207 sq mi), the third largest lake in Central Europe by area after Lake Balaton (594 km or 229 sq mi) and Lake Geneva (580 km or 220 sq mi). It is also the second largest by water volume (48.5 km or 11.6 cu mi or 39,300,000 acre⋅ft ) after Lake Geneva (89 km or 21 cu mi or 72,000,000 acre⋅ft) and extends for over 69.2 kilometres (43.0 mi) between Bregenz and Stein am Rhein . Its catchment area
5850-706: Was based on an error (similar to that of the Teutoburg Forest and the Taunus ): the Romans sometimes used the name Mare Suebicum for the Baltic Sea , not Lake Constance. In times when the Romans had located the so-called " Suebi ", then an Elbe Germanic tribe near a sea, this was understandable. The authors of the Early Modern Period overlooked this and adopted the name for the largest lake in
5928-606: Was discovered on the south-west shore of the lake between Bottighofen and Romanshorn. Grave finds from Singen am Hohentwiel date to the beginning of the Early Bronze Age and shore settlements were repeatedly built during the Neolithic Period and the Bronze Age (up to 800 BC). During the following Iron Age the settlement history is interrupted. The settlement of the shore of Lake Constance during
6006-644: Was integrated into the Roman Empire . During the campaign, there was also supposed to have been a battle on Lake Constance . The geographer, Pomponius Mela , makes the first mention in 43 AD of Lake Constance as two lakes – the Lacus Venetus (Upper Lake) and the Lacus Acronius (Untersee) – with the Rhine flowing through both. Pliny the Elder referred to Lake Constance as Lacus Brigantinus for
6084-407: Was named Lake Bernang after the village of Berlingen . On most of the maps the name of the Rheinsee is not shown, because this place is best suited for the name of the Untersee. The present-day shape of Lake Constance has resulted from the combination of several factors: Like any glacial lake, Lake Constance will also silt up by sedimentation . This process can best be observed at the mouths of
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