NOTICE -- The LBA-ECO Project website is no longer being supported.  This archive is a snapshot, as it existed in 2013, of the LBA-ECO website, maintained by NASA Goddard Space Flight Center, and now archived at the ORNL DAAC.  Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC.
banner
banner banner banner banner banner banner
banner banner banner banner banner banner banner
home aboutlibrarynews archivecontacts banner

spacer
banner
Investigations
Overview
Abstracts & Profiles
Publications
Research Sites
Meetings
Synthesis Groups
LBA-HYDROMET
LBA-Air-ECO
Logistics
Overview
Field Support
Travel
Visa
Shipping
Data
  Overview
Find LBA Data
Investigator Checklist
Process & Policy
Documentation & Archive
Training & Education
  Overview
Activities Summary
T&E Goals
Student Opportunities
  Folha Amazônica
 
spacer

Investigation:

LC-08 (Moore / Nobre)

LBA Dataset ID:

LC08_ECOSYSTEM_DYNAMICS_MODEL

Originator(s):

1. MOORCROFT, P.R.
2. HURTT, G.C.
      3. PACALA, S.W.

Point(s) of Contact:

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Dataset Abstract:

Ecosystem Demography Model (ED) estimates of: - potential above-ground net primary production (kgC/m2/y) at 1 degree resolution, - potential average live biomass (kgC/m2) at 1 degree resolution, and - potential average soil carbon(kgC/m2) at 1 degree resolution in the Amazon, Brazil. These estimates include the effects of natural disturbances such as windthrow and fire, but do not include the effects of human land use. To produce these estimates, ED was forced with ISLSCP I data for 1987 and 1988 averaged into a single average year.

Beginning Date:

1987-01-01

Ending Date:

1988-12-31

Metadata Last Updated on:

2012-06-29

Data Status:

Archived

Access Constraints:

PUBLIC

Data Center URL:

http://daac.ornl.gov/

Distribution Contact(s):

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Access Instructions:

PUBLIC

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Datafile(s):

LBA-ECO LC-08 Ecosystem Demography Model Estimated C, NPP, and Biomass For Amazonia :  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1102

Documentation/Other Supporting Documents:

LBA-ECO LC-08 Ecosystem Demography Model Estimated C, NPP, and Biomass For Amazonia :  http://daac.ornl.gov/LBA/guides/LC08_Ecosystem_Dynamics_Model.html

Citation Information - Other Details:

P.R. Moorcroft, G.C. Hurtt, and S.W. Pacala. 2012. LBA-ECO LC-08 Ecosystem Demography Model Estimated Potential Carbon, NPP, and Biomass. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/ORNLDAAC/1102

Keywords - Theme:

Parameter Topic Term Source Sensor
BIOMASS BIOSPHERE VEGETATION COMPUTER MODEL MODEL ANALYSIS
CARBON BIOSPHERE VEGETATION COMPUTER MODEL MODEL ANALYSIS
ECOSYSTEM FUNCTIONS BIOSPHERE VEGETATION COMPUTER MODEL MODEL ANALYSIS
PRIMARY PRODUCTION BIOSPHERE VEGETATION COMPUTER MODEL MODEL ANALYSIS

Uncontrolled Theme Keyword(s):  ECOSYSTEM DEMOGRAPHY MODEL, NPP, SOIL CARBON

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
    15.00000 -15.00000 -30.00000 -85.00000

Related Publication(s):

Moorcroft, P.R., G.C. Hurtt, and S.W. Pacala. 2001. A method for scaling vegetation dynamics: The ecosystem demography model (ED). Ecological Monographs 71(4):557-585.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:


Spatial & Temporal Scales</b>



The Amazon data set has a grid cell size of 1 degree by 1 degree. This data set covers southern Latin America and the northern half of South America from 15 degrees N to 15 degrees S and spans from 30 degrees W to 85 degrees W longitude. The data represent a snapshot the time period covered by the input variables (see below): 1987-1988.



Spatial Extent: Southern Central America, South America including Amazonia

Spatial Resolution: 1 degree



Date Classes Represented: Climatology

Time Steps Available: Snapshot and Monthly

Dates represented: 01/01/1987-12/31/1988








Data Format</b>



The full data set contains 30 rows by 55 columns of floating point data. The fill value for missing data and sea mask is -9.9.







Data Set Variables Data Range

ED: Amazonia a) Potential Soil Carbon (kg C m-2) 0.000043 - 29.88

b) Potential Live Biomass (kg C m-2) 0 - 18.61

c) Potential NPP (kg C m-2 yr-1) (monthly) - 0.57 - 4.54





Variable Descriptions:</b>



a) Potential Soil Carbon



Ecosystem Demography Model (ED) estimates of potential average soil carbon (kg C m-2), including litter and necromass, at 1 degree resolution. These estimates include the effects of natural disturbances such as windthrow and fire, but do not include the effects of human land use.



b) Potential Live Biomass



Ecosystem Demography Model (ED) estimates of potential average live biomass (kg C m-2) at 1 degree resolution. These estimates include the effects of natural disturbances such as windthrow and fire, but do not include the effects of human land use.



c) Potential Net Primary Production



ED estimates the potential net primary production per grid cell (kg C m-2 yr-1), on a monthly basis. These estimates include the effects of natural disturbances such as windthrow and fire, but do not include the effects of human land use.





Data Application and Derivation:

The Ecosystem Demography Model is being used to examine how climate and edaphic factors, natural disturbances, and human land-use practices affect ecosystem structure and fluxes.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

Not available.

Process Description:

Data Acquisition Materials and Methods:

Model Inputs:</b>



Amazon Data set



For the Amazon data set, the model was run using data from ISLSCP I (see below). The data for 1987 and 1988 were averaged into a single average year.



ISLSCP I Initiative Data:



The International Satellite Land Surface Climatology Project (ISLSCP) Initiative I data sets provide modelers with many of the fields required to prescribe boundary conditions, and to initialize and force a wide range of land-biosphere-atmosphere models. All of the data have been processed to the same spatial resolution (1 deg. x 1 deg.), using the same land/sea mask and steps have been taken to ensure spatial and temporal continuity of the data. The data sets cover the period 1987-1988 at 1-month time resolution for most of the seasonally varying quantities and at 6-hourly resolution for the near-surface meteorological and radiative forcings.



The data sets were taken from the ISLSCP CD and are organized into the five groups listed below:



1. Vegetation



2. Hydrology and Soils



3. Snow, Ice, and Oceans



4. Radiation and Clouds



5. Near-Surface Meteorology



ISLSCP I website:



1. http://daac.gsfc.nasa.gov/CAMPAIGN_DOCS/ISLSCP/islscp_i1.html

2. http://daac.gsfc.nasa.gov/





References:

ED:



Hurtt GC, Moorcroft PR, Pacala SW, Levin SA. (1998) Terrestrial models and global change: challenges for the future. Global Change Biology 4:581-590.



ISLSCP I:



Meeson, BW, et al. (1995). ISLSCP Initiative I - global datasets for land-atmosphere models, 1987-1988, CD, NASA.



Sellers, PJ, et al. (1995). An overview of the ISLSCP Initiation I global datasets. In: ISLSCP Initiative I - global datasets for land-atmosphere models, 1987-1988, CD, NASA

Skip navigation linksHOME | ABOUT | LIBRARY | NEWS ARCHIVE | CONTACTS | INVESTIGATIONS | LOGISTICS | DATA |TRAINING & EDUCATION

NASA logo
ORNL DAAC
Get Acrobat Reader