National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service(NESDIS)

Global Monthly AVHRR Climatology Over Land
Clear-sky top-of-the-atmosphere variables


by Garik Gutman, Dan Tarpley, Aleksandr Ignatov, NOAA/NESDIS Satellite Research Laboratory, Camp Springs, Maryland
and Steve Olson, Research and Data Systems Corporation, Greenbelt, Maryland.


This is Volume 3 in the Global Change Data Base:
Editor David Hastings, NOAA/NESDIS National Geophysical Data Center, Boulder, Colorado

This directory contains the documentation on Lerner, Matthews and Fung's Methane Emissions from Animals published in the Global Ecosystems Database:


JJKineman and MAOhrenschall, editors
Global Ecosystems Database
Boulder, Colorado
NOAA National Geophysical Data Center
1992
*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
Page 1 #\document\ncillary\lmf\lmf_01.gif
Page 2 #\document\ncillary\lmf\lmf_02.gif
Page 3 #\document\ncillary\lmf\lmf_03.gif
Page 4 #\document\ncillary\lmf\lmf_04.gif
Page 5 #\document\ncillary\lmf\lmf_05.gif
Page 6 #\document\ncillary\lmf\lmf_06.gif
Page 7 #\document\ncillary\lmf\lmf_07.gif
Page 8 #\document\ncillary\lmf\lmf_08.gif
Page 9 #\document\ncillary\lmf\lmf_09.gif
Page 10 #\document\ncillary\lmf\lmf_10.gif
Page 11 #\document\ncillary\lmf\lmf_11.gif
Page 12 #\document\ncillary\lmf\lmf_12.gif
Page 13 #\document\ncillary\lmf\lmf_13.gif
Page 14 #\document\ncillary\lmf\lmf_14.gif
Page 15 #\document\ncillary\lmf\lmf_15.gif
Page 16 #\document\ncillary\lmf\lmf_16.gif
Page 17 #\document\ncillary\lmf\lmf_17.gif
Page 18 #\document\ncillary\lmf\lmf_18.gif

*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


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internet: info@ngdc.noaa.gov
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