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All Web Tools

Explore and refine search with advanced filtering for all web tools including apis, data access and data analysis tools, data visualizations, digital repositories, and interactive maps.

Filter Total Items: 873

Landsat 2 Storymap

After launch in 1975, Landsat 2 began to collect remote sensing data. Outliving its one-year design, Landsat 2 achieved seven years of operation. With two Landsats in orbit, scientists gleaned additional views of the planet.

Landsat 2 Overview

After launch in 1975, Landsat 2 began to collect remote sensing data. Outliving its one-year design, Landsat 2 achieved seven years of operation. With two Landsats in orbit, scientists gleaned additional views of the planet.

U.S. Groundwater Conditions

The U.S. Groundwater Conditions animated data visualization depicts groundwater levels at 2,281 well sites across the U.S. At each site, groundwater levels are shown relative to the historic record (using percentiles), indicating where groundwater is comparatively high or low to what has been observed in the past. The corresponding time series chart shows the percent of sites in each water-le

Nitrogen Loading from Selected Long Island Sound Tributaries from 1995 to 2016

This dashboard application displays nitrogen concentrations and loads in selected Long Island Sound tributaries. 

CRSSP Imagery-Derived Requirements (CIDR) Entry Tool

The CRSSP Imagery-Derived Requirements (CIDR) Entry Tool allows the entry of imagery requirements, review existing requirements, or explore potential data partnerships. 

Pennsylvania Real-Time Water Quality

Real-time computed concentrations of water-quality constituents such as suspended sediment and fecal coliform bacteria are calculated using ordinary least squares regression models. The results of these models, along with direct water-quality measurements, can be viewed here as time-series graphs, or downloaded as tabular data.

Pennsylvania Drought Condition Monitoring

The Pennsylvania Drought Condition Monitoring Application shows the current drought status for each county and hydrologic conditions for precipitation, streamflow, groundwater levels, and Palmer Drought-Severity Index used by PA DEP for drought monitoring.

GBIF-US

Species observations for the United States and Territories

Landsat: Launching into a New Year

This year was huge for the Landsat Program. Here are three major Landsat events from 2021. Use the map to explore the stories we've shared with you this year.

topoView

The maps available through topoView are from the USGS US Topo series as well as Historical Topographic Map Collection (HTMC).