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NPP TUNDRA: POINT BARROW, ALASKA, 1970-1972

Entry ID: NPP_BRW

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Summary

Abstract: The NPP Database contains documented field measurements of NPP for global terrestrial sites compiled from published literature and other extant data sources. The NPP Database contains biomass dynamics, climate, and site-characteristics data georeferenced to each intensive site. A major goal of the data compilation is to use consistent and standard well-documented methods to estimate NPP from the ... field data. Other important components of the database include a summary, investigator contact information, and a list of key references for each site. As far as possible, the original principal investigator or his/her successor has been contacted to review the data and documentation. The NPP Database currently contains detailed data for over 60 intensive study sites. A majority of these sites are grasslands, the remainder being tropical forests, boreal forests, and tundra study sites. Some combination of above-ground annual peak live biomass data and/or seasonal biomass dynamics data are available for all sites. Many sites also have data on below-ground biomass and/or turnover. Estimates of net primary productivity are included, where available, for individual sites, and as part of the NPP Summary tables. Climate and soils data are available for all sites in varying degrees of detail. The sites have been grouped according to vegetation maps based upon Bailey ecoregions, Holdridge Life-Zones, Matthews vegetation classes, and Olson World Ecosystem Complexes. Previously compiled multi-site data sets of georeferenced NPP estimates are also provided. NPP estimates are available from a number of different collections, containing more than 1700 sites but with less information available for each individual site as compared to the intensive sites. Records for these sites typically include an NPP value, latitude and longitude, original source of the data, and sometimes information on vegetation type, management, soils, and local climate. More information on the entire Net Primary Productivity Project can be found at the NPP home page, with links to further details on individual study sites or multi-site collections. Users are encouraged to browse these Web pages to find details of original studies, methodologies, and original research contacts. NPP data are available on-line from the ORNL Distributed Active Archive Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A. Data Citation: Cite the data sets using the following reference format: Author, P. A., and M. B. Author. Year. Data Set Title. Available on-line from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. For example: Williamson, P., and J. Pitman. 1999. NPP Grassland: Beacon Hill, U.K. 1972-1973. Available on-line from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.

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Description: NPP TUNDRA: POINT BARROW, ALASKA, 1970-1972

Geographic Coverage

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Spatial coordinates

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: Ronald C. Blakey

Dataset Title: Global Paleogeographic Views of Earth History - Late Precambrian to Recent

Dataset Publisher: Northern Arizona University

Data Presentation Form: Globes, maps

Online Resource: http://jan.ucc.nau.edu/~rcb7/globaltext2.html

Paleo Temporal Coverage

Chrono Unit:

PHANEROZOIC > PALEOZOIC > CAMBRIAN

Location Keywords

OCEAN > ARCTIC OCEAN

GEOGRAPHIC REGION > GLOBAL

GEOGRAPHIC REGION > POLAR

Science Keywords

LAND SURFACE > GEOMORPHOLOGY > TECTONIC LANDFORMS/PROCESSES

LAND SURFACE > TOPOGRAPHY > LANDFORMS

ISO Topic Category

BIOTA

Quality The accuracy for each amphibian taxon range varies, depending on the number of
records available.

The range maps were created using current and historical information from
verified sightings and museum records.

Access Constraints None

Use Constraints None

Ancillary Keywords

amphibians

California

Sierra Nevada

distribution maps

Data Set Progress

COMPLETE

Data Center

Sycamore Associates

Data Center URL: http://www.sycllc.com/aboutus/team/jennings_mark.shtml

Data Center Personnel
Name: MARK R. JENNINGS Contact Address: Rana Resources 39913 Sharon Avenue City: Davis Province or State: California Postal Code: 95616-9456 Country: USA

Personnel

MARK R. JENNINGS

Role: TECHNICAL CONTACT

Contact Address:

Rana Resources

39913 Sharon Avenue

City: Davis

Province or State: California

Postal Code: 95616-9456

Country: USA

TYLER B. STEVENS

Role: DIF AUTHOR

Phone: (301) 614-6898

Fax: 301-614-5268

Email: Tyler.B.Stevens at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Global Change Master Directory

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

Publications/References

Mark Jennings, Final report to Congress, vol II, Assessments and scientific
basis for management options, California, California Academy of Sciences, pp.
921-944.

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2005-08-17

Last DIF Revision Date: 2012-12-12

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