United States of America

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Date published: November 4, 2019
Status: Active

Vermont Water Use

Background: The U.S. Geological Survey compiles estimates of water use in Vermont and the rest of the United States at the county, state, and national levels every 5 years since 1950. The most recent estimated water use compilation was completed in 2015. A summary for Vermont is presented on this webpage.

The Issue: Comprehensive water use data analysis...

Date published: November 4, 2019
Status: Active

Eyes on Earth Episode 7 – Training Iraqi Scientists

Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center. In this episode, we learn the basics  of Earth observation satellites.

Contacts: Janice Nelson
Date published: November 1, 2019
Status: Active

Swan Research

USGS research on swans in Alaska has focused on pathogens, contaminants, and demographic rates in each of the different breeding areas of Alaska. The vastly different migration patterns of swans in Alaska means that there are multiple factors on the wintering grounds and during migration that may influence population size and trends.

Date published: October 29, 2019
Status: Active

RPIF Digitized Film Collection

The RPIF's 15-mm film collection contains historic films related to astronaut training, equipment field tests, geological expiditions and more. Select from the videos on the right to play it. Scroll down for more videos. Videos may take a few minutes to load.

Date published: October 28, 2019
Status: Completed

Update of the Hawaii Seismic Hazard Model Workshop

Wednesday, September 18, 2019
Honolulu, HI
University of Hawaii at Manoa

Agenda – PDF (47KB)

The following links are to PDF versions of the workshop presentations. All workshop participants have granted permission to post their...

Date published: October 27, 2019
Status: Active

Sitka, AK

Recent Conditions

Instruments are used to monitor and detect changes in local conditions, including:

Date published: October 27, 2019
Status: Active

Topographic Change Viewer

The USGS has developed a national inventory of significant topographic changes based on seamless multi-temporal elevation data and land cover data. The NED and the Shuttle Radar Topography Mission (SRTM) data form a unique pair of seamless elevation datasets that can be used to detect and analyze 20th century topographic surface changes in the United States.  

Date published: October 27, 2019
Status: Active

Quadrangle Base Maps

Many resource managers and geospatial data users are familiar with the USGS 7.5-minute quadrangle map series. Also, much of the geospatial data managed by the USGS was originally produced in tiles corresponding to the 7.5-minute maps. The topographic map quadrangles are still commonly used as base maps for outlining data collection strategies and defining project boundaries. Thus, it is useful...

Contacts: Dean Gesch
Date published: October 27, 2019
Status: Active

1x1-Degree Tiles

Summary statistics were also accumulated on the basis of the 1x1-degree tiles used for data management and processing. A total of 500 tiles contain topographic change polygons (see figure below), which represents over 53 percent of the conterminous United States tiles.

Contacts: Dean Gesch
Date published: October 27, 2019
Status: Active

Regional Geography of Topographic Surface Changes

The spatial distribution of the topographic change polygons across the conterminous United States reveals some notable regional differences and patterns of change. Overall, there is a decided concentration of change polygons in the eastern United States, which can be partially explained by the greater population density as compared to the west.

Contacts: Dean Gesch
Date published: October 26, 2019
Status: Active

Proximity of Topographic Change Areas to Other Features

The near-national extent of the topographic change dataset also allows for spatial comparisons, such as proximity of change polygons to roads and urban areas. Such comparisons have been done for the proximity of mines to roads and major cities for the five focus ecoregions. This figure shows the locations of the centroids of mining polygons within the five ecoregions and the locations of...

Contacts: Dean Gesch