Search datasets
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The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of the built environment that...
Search relevance: 1.00 | Views last month: 58 | Catalog Last Checked: August 03, 2026 at 04:49 AM -
This web service depicts nearly 17,000 neighborhood boundaries in over 650 U.S. cities. Zillow created the neighborhood boundaries and is sharing them with the public under a Creative Commons...
Search relevance: 1.00 | Views last month: 32 | Catalog Last Checked: August 03, 2026 at 04:45 AM -
The NOAA National Estuarine Research Reserve (NERR) System-wide Monitoring Program (SWMP) collects meteorological, water quality, and nutrient/pigment data on an ongoing basis. Meteorological...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: August 03, 2026 at 08:15 AM -
These map layers present the number of National Green Building Standard points awarded for a project site or lot’s relative walkability, and accessibility to jobs via transit or within a 45-minute...
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This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic Continental Margin of the...
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The Chesapeake Bay Estuary is the largest estuary in the United States and provides habitats for diverse wildlife and aquatic species, protects communities against flooding, reduces pollution to...
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This metadata record documents 3 sets of comma delimited tables representing the amount of reported best management practice (BMP) implementation within the Chesapeake Bay watershed as well as...
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This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN).
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This web service layer, Ozone 8-hr (2015 standard), displays identified state level areas where ground-level ozone have not met the National Ambient Air Quality Standards (NAAQS) established in...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 03, 2026 at 04:44 AM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file (SWSUB8) is a statewide digital watershed file. It depicts the State with 138 separate...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 02, 2026 at 11:06 PM -
This metadata record documents 2 comma delimited tables representing output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The effect of best management practices (BMP) in 2014 in...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 01, 2026 at 03:56 AM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The Maryland Department of Natural resources began updating the National Wetlands Inventory (NWI) mapping...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 02, 2026 at 11:11 PM -
U.S. Geological Survey (USGS) and Virginia Institute of Marine Science (VIMS) scientists conducted field data collection efforts during June 11th - 16th, 2020, using a combination of remote...
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Enforcement and Compliance Information Center - ECIC is a repository of external policy and guidance documents, links to cases and settlements, civil and criminal complaints that are reviewed by...
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In order to test hypotheses about groundwater flow under and into Chesapeake Bay, geophysical surveys were conducted by U.S. Geological Survey (USGS) scientists on Chesapeake Bay and the Potomac...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 05:22 AM -
Data release contains two shapefiles related to poultry houses on the Delmarva Peninsula (Delaware, Eastern Shore Maryland and, Eastern Shore Virginia). One dataset is a polygon shapefile...
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This data set includes information pertaining to 300 bivalve mollusk tissue samples collected from mollusk specimens from waters in eastern Maryland on the Delmarva Peninsula. Data includes...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 04:27 AM -
Predictions from statistical modeling of floodplains, streambanks, and streambeds in the Chesapeake Bay and Delaware River watersheds of the U.S. Mid-Atlantic. Random Forest statistical models...
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This dataset contains discrete water sample and physiological data from a laboratory experiment that took place July 26 - September 12, 2019 to observe how ocean acidification might impact the...
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The Deal Island beneficial use project involved raising the marsh platform's elevation using dredged material from the lower Wicomico River. NCCOS researchers conducted intensive data collection...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 03, 2026 at 05:14 AM
