Friday, May 17th, 2013
For the first time, national maps and trend graphs show the distribution of the agricultural use of 459 pesticides for each year during 1992-2009 for the entire conterminous U.S. The maps and supporting national database of county-level use estimates for each pesticide were developed by the U.S. Geological Survey (USGS) for use in national and
Tuesday, May 14th, 2013
Warmer spring temperatures since 1980 are causing an estimated 20 percent loss of snow cover across the Rocky Mountains of western North America, according to new research from the U.S. Geological Survey. The new study builds upon a previous USGS snowpack investigation which showed that, until the 1980s, the northern Rocky Mountains experienced large snowpacks
Thursday, May 9th, 2013
Images from Landsat satellites provided free to the public by the Department of the Interior’s U.S. Geological Survey were the starting points for “a new breakthrough” reported today by Time and announced on the Official Google Blog. Using its Earth Engine technology, Google has compiled decades of Landsat images into a new, interactive time-lapse experience.
Tuesday, May 7th, 2013
USGS hydrologic researchers have found that the movement of nitrate through groundwater to streams can take decades to occur. This long lag time means that changes in the use of nitrogen-based fertilizer (the typical source of nitrate) — whether the change is initiation, adjustment, or cessation — may take decades to be fully observed in
Friday, May 3rd, 2013
As lingering spring rains soak eastern Iowa, crews from the U.S. Geological Survey continue efforts to make sure the streamgaging network is providing basic scientific information needed by water-resource managers and the community.
Thursday, May 2nd, 2013
USGS The National Map Topographic Data are now available on mobile devices that are using the Android or iOS operating system. Android and iPhone users can now use their mobile devices as digital topo maps, leveraging USGS maps together with the power of GPS to zoom in on their precise location while hiking, biking, running,
Tuesday, April 30th, 2013
More than 800 acres of uplands in and near Acadia National Park will likely be flooded by the ocean if sea level rises 2 feet during this century, leaving 75 percent of the saltwater marshes along this part of central Maine’s rugged coast with very little upland area to migrate into, according to a new
Tuesday, April 30th, 2013
A new model to better describe groundwater changes and chloride movement in the Equus Beds aquifer, a primary water-supply source for the Wichita, Kansas area, has been completed by the U.S. Geological Survey, in cooperation with the City of Wichita.
Monday, April 29th, 2013
On May 30, 2013, the Landsat Data Continuity Mission (LDCM) will officially start its lifelong mission as Landsat 8. The next Landsat satellite will then begin to systematically acquire images of Earth, extending Landsat’s four-decade record of our planet. The USGS is inviting 30 social media followers to join them for a ceremony at the
Wednesday, April 24th, 2013
U.S. Geological Survey field crews are measuring record flooding on rivers and streams across most of Illinois. At least ten USGS streamgages in Illinois that have more than 20 years of record, have measured the highest flood levels ever recorded. More record levels are expected as flooding moves downstream. USGS crews are expected to track
