Integrated Biosphere Simulator Model (IBIS), Version 2.5

Metadata Updated: August 9, 2018

ABSTRACT: The Integrated Biosphere Simulator (or IBIS) is designed to be a comprehensive model of the terrestrial biosphere. Tthe model represents a wide range of processes, including land surface physics, canopy physiology, plant phenology, vegetation dynamics and competition, and carbon and nutrient cycling. The model generates global simulations of the surface water balance (e.g., runoff), the terrestrial carbon balance (e.g., net primary production, net ecosystem exchange, soil carbon, aboveground and belowground litter, and soil CO2 fluxes), and vegetation structure (e.g., biomass, leaf area index, and vegetation composition). IBIS was developed by Center for Sustainability and the Global Environment (SAGE) researchers as a first step toward gaining an improved understanding of global biospheric processes and studying their potential response to human activity [Foley et al. 1996]. IBIS was constructed to explicitly link land surface and hydrological processes, terrestrial biogeochemical cycles, and vegetation dynamics within a single, physically consistent framework. Furthermore, IBIS was one of a new generation of global biosphere models, termed Dynamic Global Vegetation Models (or DGVMs), that consider transient changes in vegetation composition and structure in response to environmental change. Previous global ecosystem models have typically focused on the equilibrium state of vegetation and could not allow vegetation patterns to change over time. Version 2.5 of IBIS includes several major improvements and additions [Kucharik et al. 2000]. SAGE continues to test the performance of the model, assembling a wide range of continental- and global-scale data, including measurements of river discharge, net primary production, vegetation structure, root biomass, soil carbon, litter carbon, and soil CO2 flux. Using these field data and model results for the contemporary biosphere (1965-1994), their evaluation shows that simulated patterns of runoff, NPP, biomass, leaf area index, soil carbon, and total soil CO2 flux agreed reasonably well with measurements that have been compiled from numerous ecosystems. These results also compare favorably to other global model results [Kucharik et al. 2000].

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources

References

http://daac.ornl.gov/MODELS/guides/IBIS_Guide.html

Dates

Metadata Created Date February 26, 2015
Metadata Updated Date August 9, 2018
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date February 26, 2015
Metadata Updated Date August 9, 2018
Publisher National Aeronautics and Space Administration
Unique Identifier C179003501-ORNL_DAAC__2
Maintainer
PLEASE CONTACT ORNL DAAC User Services
Maintainer Email
Id {$oid: 55942a66c63a7fe59b4965e7}
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id f1ee9bbf-7d5e-4888-8939-c0c569e6a41e
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2005-09-12T00:00:00.000Z
Homepage URL http://reverb.echo.nasa.gov/reverb?selected=C179003501-ORNL_DAAC
Language en-US
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2005-09-12T00:00:00.000Z
Program Code 026:001
Related Documents http://daac.ornl.gov/MODELS/guides/IBIS_Guide.html
Source Datajson Identifier True
Source Hash edacf93d78e49feeec2bcdea548d2a10de4f2260
Source Schema Version 1.1
Spatial -180.0, -90.0, 180.0, 90.0
Temporal 1994-01-01T00:00:00.000Z/1994-01-01T00:00:00.000Z
Category MODEL ARCHIVE, ESIP, EOSDIS

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