Book Review—GIS for Surface Water Using the National Hydrography Dataset
نویسندگان
چکیده
منابع مشابه
Shallow-Water Hydrography in Portugal Using ERS-SAR Data
Introduction The aim of hydrography is basically to chart the underwater topography. A precise knowledge of the sea-bottom features has great relevance mainly in shallow waters, where navigational safety must be assured at any cost. Ideally, one should have available a complete series of maps of the sea-bottom topography. approximately 100 km x 100 km. Although the basic information provided by...
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Introduction: The U.S. Geological Survey’s (USGS) Center of Excellence in Geospatial Information Science (CEGIS) is conducting generalization research in cooperation with the University of Colorado—Boulder and Pennsylvania State University to support display and delivery of The National Map and other USGS geospatial data at multiple scales. This paper focuses on generalization of the National H...
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abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
15 صفحه اولFeature pruning by upstream drainage area to support automated generalization of the United States National Hydrography Dataset
The United States Geological Survey has been researching generalization approaches to enable multiple-scale display and delivery of geographic data. This paper presents automated methods to prune network and polygon features of the United States high-resolution National Hydrography Dataset (NHD) to lower resolutions. Feature-pruning rules, data enrichment, and partitioning are derived from know...
متن کاملWind-driven summer surface hydrography of the eastern Siberian shelf
[1] High interannual variability of summer surface salinity over the Laptev and East Siberian Sea shelves derived from historical records of the 1950s–2000s is attributed to atmospheric vorticity variations. In the cyclonic regime (positive vorticity) the eastward diversion of the Laptev Sea riverine water results in a negative salinity anomaly to the east of the Lena Delta and farther to the E...
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ژورنال
عنوان ژورنال: Photogrammetric Engineering & Remote Sensing
سال: 2019
ISSN: 0099-1112
DOI: 10.14358/pers.85.1.11