National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service(NESDIS)
This directory contains the documentation on Lerner, Matthews and Fung's Methane Emissions from Animals published in the Global Ecosystems Database:
*LERNER ET AL ANIMAL METHANE_help
Global Ecosystems Database Disc A: Chapter 8
Lerner, Matthews and Fung Methane Emission From Animals
Animal Density
Annual Methane Emission
DATA-SET DESCRIPTION
Data-Set Name: Lerner, Matthews and Fung Methane Emission From
Animals
Principal Investigator: Jean Lerner, Elaine Matthews, and Inez Fung
Goddard Institute for Space Studies
Scientific Reference: (* reprint on CD-ROM)
+ Lerner, J., Matthews, E., and Fung, I. 1988. "Methane
emissions from animals: A global high-resolution data
base." Global Biogeochemical Cycles, vol. 2, no.2, pp.
139-156.
SOURCE
Source Data Citation:
Lerner, J., E. Matthews, and I. Fung. 1989. Methane Emission
From Animals: A Global High Resolution Database from
the NASA Goddard Institute for Space Studies. Digital
Raster Data on a 1-degree Geographic (lat/long) 180x360
grid. Boulder, CO: National Center for Atmospheric
Research. 1 floppy disk, 1.3 MB.
Contributor:
Drs. Jean Lerner, Elaine Matthews and Inez Fung
NASA Goddard Space Flight Center,
Institute for Space Studies
2880 Broadway
New York, NY 10025 USA
Distributor:
NCAR
Vintage:
circa 1987
Lineage:
(1) Data Development:
Jean Lerner, Elaine Matthews and Inez Fung
NASA Goddard Institute of Space Studies
New York, NY
(2) Archived and Distributed by:
Data Support Section
National Center for Atmospheric Research
Boulder, CO
ORIGINAL DESIGN
Variables:
(1) Animal Density for various animals, expressed in number
of animals per square kilometer.
(2) Annual Methane Emission, in kilograms per square
kilometer
Origin:
(see Scientific Reference)
(1) Domestic animals: 1984 FAO Production Yearbook
(2) Wild and domestic caribou: Anderson, 1978; Nowak and
Paradiso, 1983; Jackson, 1986.
(3) Matthews Vegetation and Land Use data (see A07)
Geographic Reference:
latitude/longitude
Geographic Coverage:
Global
Maximum Latitude: +90degrees (N)
Minimum Latitude: -90degrees (S)
Maximum Longitude: +180degrees (E)
Minimum Longitude: -180degrees (W)
Geographic Sampling:
Averages over 1-degree grid cell areas
Time Period:
Modern statistical compilations, circa 1980's
Temporal Sampling:
Modern composite of available data
INTEGRATED DATA-SET
Data-Set Citation:
Lerner, J., E. Matthews, and I. Fung. 1992. Methane Emission
from Animals: A Global High Resolution Database.
Digital Raster Data on a 1-degree Geographic (lat/long)
180x360 grid. In: Global Ecosystems Database Version
1.0: Disc A. Boulder, CO: NOAA National Geophysical
Data Center. 11 independent single-attribute spatial
layers on CD-ROM, 2.9 MB. [first published in 1988]
Analyst:
Mark Ohrenschall
Projection:
Geographic (lat/long), GED window (see User's Guide).
Spatial Representation:
Averages over 1-degree grid cell areas
Temporal Representation:
Modern composite
Data Representation:
(1) Animal Density: Number/km2, with precisions up to
10-7; expressed as 4-byte IEEE real
numbers to 10 significant digits
(2) Methane Emission: Kg/km2, +/-1 Kg/km2, expressed as 4-
byte IEEE real numbers
Layers and Attributes:
11 independent single-attribute spatial layers
Compressed Data Volume:
130,257 bytes
ADDITIONAL REFERENCES
NONE
TECHNICAL REPORT
Mark A. Ohrenschall
National Geophysical Data Center
Boulder, CO
Data were read from floppy disk and converted to the GED format,
separating each variable into different GIS files without
altering the original numerical values. Legend information was
entered from the accompanying documentation. All final data
files were inspected for agreement with the original versions.
*LERNER ET AL ANIMAL METHANE
ANCILLARY ENVIRONMENTAL DATA
Lernet et al Animal Density #*ANIMAL DENSITY
Lerner et al Annual Methane Emission #*ANNUAL METHANE EMISSION
Scanned Documentation #*LMF SCANNED DOCUMENTATION
*LMF SCANNED DOCUMENTATION_help
The scanned documentation noted here is contained in the \document
directory on the CD-ROM as .gif files. These files can be read by
any computer program that reads PC Paintbrush format files.
The GeoVu software provided on this CD-ROM contains such a utility.
To use the GeoVu utility, merely select the appropriate file from
this menu, using the "Open Data" option that you have been using to
this point.
If you are VERY NEW to GeoVu, you can open a file by
1. Selecting "File" from the options at the top of your screen.
2. After selecting "File" select "Open Data" from the options that
appear in the pull-down menu.
3. Follow the hierarchy of menu paths to the data of your choice.
4. When the hierarchy leads you to a topic "Scanned Documentation"
merely select that topic. The next topic should read "Page 1, Page
2,... etc." or "Paper 1 Page 1, Paper 1 Page 2, .... Paper 2 Page
1.... etc. You can select the pages manually, or create a "slide
show" under the Utilities option at the top of the screen. The
first time the .gif file displays it might be reduced in size. This
is a "feature" of current versions of GeoVu that might be improved
in the future. If you redisplay the image (by selecting "Search"
from the options at the top of the screen, then "Create" from the
menu thus pulled down, you can modify the parameter that sets the
sampling rate from "n" [usually 2, 3, 4, or 5] to 1). This will
give you full resolution display of the scanned documentation.
It should be noted that this scanned documentation is a compromise.
We originally attempted to use optical character recognition
software to convert the scanned documentation to more usable text.
However, the technology was too immature at the time of scanning
(1992) to use successfully. Indeed, as of this writing (late 1995)
the technology is still too immature for convenient application to
this problem.
Thus, we present the scanned documentation as images.
NOTE: Many of the original documents are not copyright, and may be
reproduced freely. However, several other documents ARE copyright.
The National Geophysical Data Center has obtained permission to
reproduce all documents with a valid copyright. However, this
permission does not pass automatically to anyone else. Thus, though
all of the data on this CD-ROM are unrestricted, much of the
scanned documentation (which contains copyright notices) may not be
distributed further, without permission of the copyright holder, or
without a dontribution made to the Copyright Clearance Center under
the rules noted in the individual papers. (Also note that a few
documents authored by U. S. Government employees or contractors as
part of their work for the Government, had copyrights claimed by
the journals that published the papers. Such documents are not
subject to copyright, and the copyright claims of said journals
have been determined to be meritless.)
*LMF SCANNED DOCUMENTATION
LERNER ET AL ANIMAL METHANE
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*ANIMAL DENSITY_help
DATA ELEMENT: Animal Density
STRUCTURE:
Raster Data Files: 1-degree GED 180x360 grid
(see User's Guide)
SERIES:
Animals
SPATIAL META-DATA:
LMFCAML.DOC
file title : Lerner et al Camel Density (1/Km^2)
data type : real
file type : binary
columns : 360
rows : 180
ref. system : lat/lon
ref. units : deg
unit dist. : 1.0000000
min. X : -180.0000000
max. X : 180.0000000
min. Y : -90.0000000
max. Y : 90.0000000
pos'n error : unknown
resolution : 1.0000000
min. value : 0.0000000
max. value : 11.3000002
value units : animals / square kilometer
value error : unknown
flag value : -1.0000000
flag def'n : flag value signifies land with no animals
legend cats : 0
comment : ocean has the value -100
File Series Parameters:
File Animal Minimum Maximum
LMFCAML Camels 0.0000000 11.3000002
LMFCARB Caribou 0.0000000 6.9600000
LMFCOW Dairy &Non-Dairy Cattle 0.0000000 246.0000000
LMFDCOW Dairy Cows 0.0000000 77.0000000
LMFGOAT Goats 0.0000000 91.9000015
LMFHORS Horses 0.0000000 18.2000008
LMFNCOW Non-dairy Cattle 0.0000000 218.0000000
LMFPIG Pigs 0.0000000 361.0000000
LMFSHEP Sheep 0.0000000 382.0000000
LMFWBUF Water Buffalo 0.0000000 89.3000031
ATTRIBUTE META-DATA:
NONE
NOTES:
(1) These data are stored as real numbers (IEEE 4-byte
floating point numbers) to preserve the full range of
numerical values in the original data-set.
*ANIMAL DENSITY
LERNER ET AL ANIMAL METHANE
Camels #\data\ncillary\lmfcaml.img
Caribou #\data\ncillary\lmfcarb.img
Dairy and Non-Dairy Cattle #\data\ncillary\lmfcow.img
Dairy Cows #\data\ncillary\lmfdcow.img
Goats #\data\ncillary\lmfgoat.img
Horses #\data\ncillary\lmfhors.img
Non-Dairy Cattle #\data\ncillary\lmfncow.img
Pigs #\data\ncillary\lmfpig.img
Sheep #\data\ncillary\lmfshep.img
Water Buffalo #\data\ncillary\lmfwbuf.img
*ANNUAL METHANE EMISSION_help
DATA ELEMENT: Annual Methane Emission
STRUCTURE:
Raster Data Files:1-degree GED 180x360 grid (see User's Guide)
SERIES:
NONE
SPATIAL META-DATA:
LMFMETH.DOC
file title : Lerner et al Annual Methane Emission (Kg/Km^2)
data type : real
file type : binary
columns : 360
rows : 180
ref. system : lat/lon
ref. units : deg
unit dist. : 1.0000000
min. X : -180.0000000
max. X : 180.0000000
min. Y : -90.0000000
max. Y : 90.0000000
pos'n error : unknown
resolution : 1.0000000
min. value : 0.0000000
max. value : 11400.0000000
value units : kilograms / square kilometer
value error : unknown
flag value : -1.0000000
flag def'n : flag value signifies land with no methane
legend cats : 0
comment : ocean has the value -100
ATTRIBUTE META-DATA:
NONE
NOTES:
(1) These data are stored as real numbers (IEEE 4-byte
floating point numbers) to preserve the full range of
numerical values in the original data-set.
*ANNUAL METHANE EMISSION
LERNER ET AL ANIMAL METHANE
Annual Methane Emission #\data\ncillary\lmfmeth.img