Skip to main content
Advanced Search

Filters: Tags: Africa (X) > Types: OGC WMS Layer (X)

10 results (31ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
Surficial geology (geo7_2ag).
Categories: Data, pre-SM502.8; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aaiun-Tarfaya Basin, Province 2066, Abu Gharadiq Basin, Province 2038, Africa, Age, Amhara Plateau, Province 7161, All tags...
thumbnail
This coverage includes arcs, polygons and polygon labels that describe U.S. Geological Survey defined geologic provinces of the Africa. Each province has a set of geologic characteristics distinguishing it from surrounding provinces. These characteristics may include the dominant lithologies, the age of the strata, and the structural style. Some provinces include multiple genetically-related basins. Offshore province boundaries are generally defined by the 2000 meter bathymetric contour, but where appropriate are defined by the 4000 meter bathymetric contour. In some cases province boundaries are delineated by political boundaries, as in the case of The United States and Canada, because United States petroleum resources...
Categories: Data, pre-SM502.8; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aaiun-Tarfaya Basin, Province 2066, Abu Gharadiq Basin, Province 2038, Africa, Amhara Plateau, Province 7161, Atlas Basin, Province 2062, All tags...
thumbnail
Agriculture consumes the largest share of freshwater globally, therefore, distinguishing between rainfed and irrigated croplands is essential for agricultural water management and food security. Yet in Africa, disaggregating croplands is challenging due to the continent's vast size, diverse climates, and varied agricultural practices. In this study, a framework using the Budyko model was applied to differentiate between rainfed and irrigated cropland areas in Africa for eight remote sensing landcover products and a high confidence cropland map (HCCM). The approach outlined in this research expands on the suite of remote sensing landcover products that can be used for agricultural water studies in Africa by enabling...
thumbnail
This dataset, VegDischarge v1, represents a significant contribution to the understanding of hydrological dynamics across Africa from 2000 to 2021. It encompasses high-resolution (1km x 1km) monthly raster data of deep drainage, surface runoff, and total runoff, derived from the VegET (VegetationEvapoTranspiration) hydrological model (Senay et al., 2023). Additionally, routed discharge data (Mizukami et al., 2021) for over 63,000 river segments is provided, employing different routing algorithms (DW, KW, KWT, MC, and IRF) to demonstrate variability in river discharge patterns. This comprehensive dataset is stored in NetCDF and Shapefile formats, offering valuable insights for policymakers, stakeholders, and researchers...
thumbnail
The Denver fossil algae database were gathered from the inception of Denver Region in 1953 by Richard Rezak. His specialty was algae, carbonate platforms, and off-shore modern reefs. He developed a very useful litho-stratigraphic tool while studying Proterozoic algae and stromatolites in Glacier National Park. This lead to his studies of modern analogs in the Caribbean and South Seas. This collection contains 1001 fossil localities. This collection was originally created and maintained by U.S. Geological Survey (USGS) and as of March 2020 has been transferred to the Smithsonian National Museum of Natural History.
thumbnail
The Global Geochemical Database for Critical Metals in Black Shales (CMIBS) contains new geochemical data compilations for fine-grained sedimentary rocks in which each geologic material sample has one 'best value' determination for each analyzed species, greatly improving speed and efficiency of use (Granitto and others, 2013). The CMIBS was created and designed to compile and integrate geochemical data from seven continents in order to facilitate petrologic studies, mineral resource assessments and mineral exploration, definition of geochemical baseline values and statistics, environmental impact assessments, paleobiological studies and paleoenvironmental trends through Earth history. and studies in human health...
thumbnail
The CoRE (Contractions or Range Expansions) database contains a library of published literature and data on species range shifts in response to climate change. Through a systematic review of publications returned from searches on Google Scholar, Web of Science, and Scopus, we selected primary research articles that documented or attempted to document species-level distribution shifts in animal or plant species in response to recent anthropogenic climate change. We extracted data in four broad categories: (i) basic study information (study duration, location, data quality and methodological factors); (ii) basic species information (scientific names and taxonomic groups); (iii) information on the observed range shifts...
thumbnail
Part of star dunes, showing three curving arms with steep slipfaces oriented in various directions, at Tsonab Vlei in the northeastern part of the Namib Desert. Photo by E. T. Nichols. Namibia, South West Africa. No date.
thumbnail
Dune and interdune deposits in the northwestern Namib Desert. The star dine in the background is approximately 300 feet high. Photo by E. T. Nichols. Namibia, South West Africa. No Date.


    map background search result map search result map Aerial view of longitudinal dune. Namib Desert, Africa. No date. Part of star dunes at Tsonab Vlei in the northeastern part of the Namib Desert. Africa. no date. Dune and interdune deposits in the northwestern Namib Desert. Africa. no date. Global Geochemical Database for Critical Metals in Black Shales Surficial geology of Africa (geo7_2ag) Geologic Provinces of Africa, 2000 (prv7_2ag) USGS Denver Micro-fossil collection: Fossil Algae Rainfed and Irrigated Cropland Areas for Africa Hydrologic gridded runoff and routed discharge data for Africa from 2000-2021 Aerial view of longitudinal dune. Namib Desert, Africa. No date. Part of star dunes at Tsonab Vlei in the northeastern part of the Namib Desert. Africa. no date. Dune and interdune deposits in the northwestern Namib Desert. Africa. no date. Rainfed and Irrigated Cropland Areas for Africa Hydrologic gridded runoff and routed discharge data for Africa from 2000-2021 Geologic Provinces of Africa, 2000 (prv7_2ag) Surficial geology of Africa (geo7_2ag) USGS Denver Micro-fossil collection: Fossil Algae Global Geochemical Database for Critical Metals in Black Shales