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Country-Level Population and Downscaled Projections Based on the SRES A1, B1, and A2 Scenarios, 1990-2100
Entry ID:
CIESIN_SEDAC_SDP_CPOP_A1B1A2
Summary
Abstract:
The Country-Level Population and Downscaled Projections Based on Special Report on Emissions Scenarios (SRES) A1, B1, and A2 Scenarios, 1990-2100, were adopted in 2000 from population projections realized at the International Institute for Applied Systems Analysis (IIASA) in 1996. The Intergovernmental Panel on Climate Change (IPCC) SRES A1 and B1 scenarios both used the same IIASA "rapid" ...
 Purpose: To provide data on country-level population and downscaled projections based on the SRES A1, B1, and A2 marker scenarios.
Related URL
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
Gaffin, S.R., X. Xing, and G. Yetman
Dataset Title:
Country-Level Population and Downscaled Projections Based on the SRES A1, B1, and A2 Scenarios, 1990-2100
Dataset Release Date:
200207
Dataset Release Place:
Palisades, NY
Dataset Publisher:
NASA Socioeconomic Data and Applications Center (SEDAC)
Version:
1.00
Data Presentation Form:
tabular
Online Resource:
http://sedac.ciesin.columbia.edu/data/set/sdp-downscaled-population...
Temporal Coverage
Start Date:
1990-01-01
Stop Date:
2100-01-01
Location Keywords
Data Resolution
Latitude Resolution:
0.25 degree
Longitude Resolution: 0.25 degree Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree Vertical Resolution: Surface Temporal Resolution: Monthly Temporal Resolution Range: Monthly - < Annual Science Keywords
ISO Topic Category
Instrument
Quality
Satellite/gauge relative error estimates are provided for each 0.25 x 0.25 degree box. The estimates are derived in two steps: (1) the error estimates of each input data are computed separately, mostly reflecting the sampling-induced uncertainty of each field and (2) a linear combination of these field errors is computed, in which each field error estimate is weighted by the inverse of its error-variance. There are currently no known deficiencies in the 3B43 algorithm. The quality of the 3B43 product is highly sensitive to the quality of the input data: TRMM adjusted merged-IR (product 3B42) and monthly accumulated TMI/TRMM Combined Instrument (TCI, product 2A12/3B31). If the quality of the input data is less than anticipated, then the quality of 3B43 will also be less.
Access Constraints
None
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
Data Center
Distribution
Distribution Media:
FTP
Distribution Size:
increasing daily
Distribution Format:
HDF
Fees:
none
Personnel
Role:
INVESTIGATOR
Phone:
301-614-6308
Fax:
301-614-5492
Email:
George.J.Huffman at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 612
City:
Greenbelt
Province or State:
Maryland
Postal Code:
20771
Country:
USA
Publications/References
Product Readme: ftp://meso-a.gsfc.nasa.gov/pub/trmmdocs/3B42_3B43_doc.pdf
File Specifications for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespec.TRMM.V7.pdf Metadata for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespecMeta.TRMM.V7.pdf TRMM V6 vs. V7 Major Data Format Changes: http://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf Huffman, G.J., 1997: "Estimates of ... Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2011-07-19
Last DIF Revision Date:
2013-05-14
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- Webmaster: Monica Holland
- Responsible NASA Official: Lola Olsen
- Last updated: May 2013
