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May 19, 2024 · The file format developed for keeping the DIME-encoded data was the Geographic Base Files (GBF). During this same era, the USGS was developing its own GIS data called Digital Line Graphs (DLGs) at a scale of 1:100,000. For example, it included United States transportation and hydrography boundaries.
4 days ago · GeMS is intended to provide a stepping stone toward development of multimap databases, in particular the National Geologic Map Database (NGMDB). Please visit our GeMS site. Related, Older Database Designs. This list focuses on the work by USGS and AASG staff, ca. 1998-2010, to define conceptual data models and physical implementations, mostly ...
May 22, 2024 · This data set includes mosaicked aerial photographs for the East Marsh Island Marsh Creation (TV-21) project for 2021. This data is used as a basemap land-water classification. It also serves as a visual tool for project managers to help them identify any obvious problems or land loss within their project boundary.
3 days ago · This is the fourth mission of the Landsat program. By collecting 217,650 total scenes, it continued its long-running archive. But Landsat 4 was different because USGS introduced a brand new sensor. Landsat 4 was the first satellite to equip the Thematic Mapper (TM). Instead of 4 bands like before, Landsat 4 gathered 7 in total.
3 days ago · 1. Esri Land Cover 10m. The Esri Land Cover (10m) is really the first solid effort to achieve a 10-meter resolution land cover using Sentinel-2. Although the spatial resolution is much greater than the other land cover products in the list, it still struggles in certain aspects. But first, the Esri Land Cover dataset consists of 5 billion human ...
May 23, 2024 · The University of Wyoming Stream Species Dataset is a species presence dataset containing presence locations for 116 freshwater fish species in Wyoming, Montana, and the surrounding states. It contains data from 40,490 unique sample events (location, month, year). Data was derived from multiple sources (Table 1) and limited to fish occurrences ...
5 days ago · After the post-classification improvement, street features had been expanded to cover areas beneath canopies, resulting in a closer alignment with the ground truth. The efficacy of the post-classification improvements was underscored by the substantial reductions in MAE from 244.90 to 57.17 m 2 and in MAPE from 6.79% to 1.83% as detailed in ...
