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This mismatch was not possible when the census TIGER files were available in ASCII format that was topological unlike shapefiles. The Census Bureau has made the data available through WMS servers. [4] The data forms a base for OpenStreetMap in the US, and also was used for the initial import of US map data into the Waze navigation system.
U.S. Gazetteer, TIGER/Line shapefiles, census data. National Historical Geographic Information System: NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP)
[12]: 218 A topology rulebase is a list of desired topology rules used to enforce spatial integrity in spaghetti data, such as "county polygons must not overlap" and "state polygons must share boundaries with county polygons." [13] Vector datasets usually represent discrete geographical features, such as buildings, trees, and counties.
The U.S. government designed TIGER grants in order to incentivize bettering environmental problems and reducing the United States' dependence on energy. On the economic front, the United States hopes infrastructure investment will encourage job creation, a pressing political priority; this would likely require the project to be shovel-ready.
The Koshi Tappu Wildlife Reserve is a protected area in the Terai of eastern Nepal covering 176 km 2 (68 sq mi) of wetlands in the Sunsari, Saptari and Udayapur Districts. It comprises extensive reed beds and freshwater marshes in the floodplain of the Kosi River , and ranges in elevation from 75 to 81 m (246 to 266 ft).
Bhadra Wildlife Sanctuary is a protected area and tiger reserve as part of the Project Tiger, situated in Chikkamagaluru district, 23 km (14 mi) south of Bhadravathi city, 38 km (24 mi) 20 km from Tarikere town, northwest of Chikkamagaluru and 283 km from Bengaluru city in Karnataka state, India. [2]
Dudhwa National Park is a national park in the Terai belt of marshy grasslands in northern Uttar Pradesh, India.It stretches over an area of 490.3 km 2 (189.3 sq mi), with a buffer zone of 190 km 2 (73 sq mi).
This list of Ramsar sites in the United States are those wetlands that are considered to be of international importance, protected under the Ramsar Convention treaty. The United States as of 2020, has 41 sites designated as "Wetlands of International Importance" with a surface area of 1,884,551 hectares (7,276.29 sq mi; 18,845.51 km 2 ).