Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations.
Land-use planning for nearshore ecosystem services--the Puget Sound Ecosystem Portfolio Model [ More info] Describes the types of concerns and observations used to help area resource managers analyze actual or potential changes in this highly developed ecosystem.
Landsat Data Continuity Mission [ More info] Main site for Landsat missions, which provide information about land surface features of the earth. Includes imagery, links to general and technical information, ordering of data, and partners.
Landsat Data Continuity Mission [ More info] A partnership between NASA and USGS to assure continuous satellite imaging of the earth's surface that was begun 40 years ago.
Landsat-A Global Land-Imaging Mission [ More info] Characteristics and history of this satellite-based earth imaging system, including plans and prospects for future instruments.
Landsat: A Global Land Imaging Program [ More info] Overview of the history of this satellite imaging system, with details about the way in which it collects information about the earth's surface.
Landscape consequences of natural gas extraction in Allegheny and Susquehanna Counties, Pennsylvania, 2004--2010 [ More info] Quantifies the landscape changes and consequences of natural gas extraction by digitizing indications of disturbance on NAIP aerial photographs and using these with the NLCD to show land use-land cover change.
Landscape consequences of natural gas extraction in Bradford and Washington Counties, Pennsylvania, 2004-2010 [ More info] Quantifies the landscape changes and consequences of natural gas extraction by digitizing indications of disturbance on NAIP aerial photographs and using these with the NLCD to show land use-land cover change.
Lewis and Clark and the U.S. Geological Survey in North Dakota [ More info] Homepage linking the historic journey of Lewis and Clark and the research of the USGS in the same region with links to mapping history, remarkable points on the Missouri River, educational activities, photo gallery, and publications.
Lidar base specification [ More info] Explains in detail how to collect, package, and document lidar data for use with The National Map.
List of spatial data sets for water [ More info] Links and brief summaries of available geospatial datasets for producing map layers on a variety of topics related to water including data on locations of aquifers, stations, land use and others.
Alphabetical Index of Topics
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