LTER Network Data Portal:
The LTER Network Information System Data Portal contains ecological data packages contributed by
past and present LTER sites. These Data and metadata derived from publicly funded research in the
U.S. LTER Network are made available online with as few restrictions as possible, on a
LTER Climatological & Hydrological Data Access (ClimDB/HydroDB):
The National Science Foundation's Long-Term Ecological Research (LTER)
program and many U.S. Forest Service Experimental Research Stations collect
and maintain extensive, long-term ecological databases including streamflow
and meteorological measurements. These databases have been widely used in
intersite comparisons, modeling studies, and land management-related
studies. To facilitate intersite research among the network of LTER sites,
individual sites maintain local climate data in local information systems
while a centralized site continually harvests, updates, and provides access
to all sites' data through a common database. Common distribution report
formats and graphical displays have been established to meet specific needs
of climate data users. Funding from the U.S. Forest Service has allowed the
climate data prototype (ClimDB) to be improved and expanded to include
hydrologic variables (HydroDB).
Each of the 26 LTER sites encompass unique ecosystems and research
approaches, investigators, students and management systems and as part of
the a larger LTER Network, they share expertise, data and a common missions.
LTER SiteDB serves as a portal for users to easily find each of the 26
site's general information such as the site's contact information, History,
Research Topics, Institutional Affiliations and a link to the site homepage.
The Trends website is a portal to a large and diverse
collection of standardized long-term ecological
datasets, unique data exploration, graphing and
synthesis tools, and information about participating
research sites and their parent agencies. These
datasets, tools and information are freely
available to researchers who wish to pursue
cross-site synthetic studies.
LTER Remote Sensing and Geographic Information System/Technology
The LTER Network Office provides support for development of technology
within the LTER Program. Examples include research involving large spatial
scales, use of geographic information systems (GIS) and Remote Sensing
Technologies. Acquisition, archiving, and distribution of satellite and GIS
data useful to the LTER Network are major activities of the LTER Network
Office. The LTER Spatial Data Workbench provides users the option to view
and download AVIRIS, TM, SPOT and MODIS images for each of the 26 LTER
ECOTRENDS Socioeconomic Catalog
The Human Population and Economy dataset contains
over two hundred separate variables suitable for
describing changes in population and economic
structure since the end of the eighteenth century.
The dataset was collected for each of the more
than two hundred and fifty counties associated
with the 21 continental North American LTER
sites plus the Luquillo site in Puerto Rico.