|
| EDG Data Set Name |
Granule Shortname |
| MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km |
MOD14 |
| Version |
Acquisition Range |
Science Quality Status |
| V003 |
August 29, 2002 (2002241) - October 7, 2002 (2002280) |
Provisional as of Nov 1, 2000 |
| V004 |
February 24, 2000 (2000055) |
|
|
Data Set Characteristics
Area = ~2330 X 2000 km
Size = 2 (~2039 X 1353 row/column)
Average File Size = 0.5 MB
Resolution = 1 kilometer
Projection = None (swath data)
Data Type Fire Mask = 8-bit unsigned
Data Format = HDF-EOS
Science Data Sets (SDSs) = 22
|
| Pixel Value |
Color |
Meaning |
| 0 |
Black |
not processed (missing input data) |
| 2 |
Dk Brown |
not processed (other reason) |
| 3 |
Dk Blue |
water |
| 4 |
Lt Blue |
cloud |
| 5 |
Beige |
no fire |
| 6 |
Purple |
unknown |
| 7 |
Yellow |
low-confidence fire |
| 8 |
Yellow |
nominal-confidence fire |
| 9 |
Red |
high-confidence fire |
|
  |
| MOD14 scene along the Sudan-Ethiopia border on Dec. 4, 2000. Fires are visible as yellow pixels in the top center of the left image, which is shown enlarged in the right image. See table for color interpretation. |
Product Description
The Level 2 Terra/MODIS Thermal Anomalies/Fire product (MOD14) is the most basic
level of MODIS fire data in which active fires and other thermal anomalies, such
as volcanoes, are identified. It is
used to generate all of the higher-level fire products. The image shown above is a swath of Level 2 fire data. The image has been
pseudo-colored for illustrative purposes. Fire detection is performed using the
MODIS 4 and 11 micrometer brightness temperatures. The fire detection strategy
is based on absolute detection of the fire, if the fire is strong enough, and on
detection relative to the background to account for variability of the surface
temperature and reflection by sunlight. Numerous
tests are employed to reject typical false alarm sources such as sun glint and
unmasked coastline.
NOTE: These products are validated, meaning that product uncertainties
are well defined over a range of representative conditions. Although there may be later improved versions, these data are ready for use in scientific publications.
| SDS |
Units |
Data Type |
Fill Value |
Valid Range |
NADIR Data Resolution |
| Fire mask |
Bit |
8-bit unsigned integer |
0 |
0 - 9 |
1km |
| Algorithm QA |
Bit |
32-bit unsigned integer |
na |
na |
1km |
| Granule line of fire pixel |
na |
16-bit signed integer |
na |
0 - ~2039 |
na |
| Granule sample of fire pixel |
na |
16-bit signed integer |
na |
0 - 1353 |
na |
| Latitude of fire pixel |
Degree |
32-bit floating point |
na |
-90.0 – 90.0 |
na |
| Longitude of fire pixel |
Degree |
32-bit floating point |
na |
-180.0 – 180.0 |
na |
| Channel 2 reflectance of fire pixel |
na |
32-bit floating point |
-1 |
0 – 120 |
na |
| Channel 21/22 brightness temperature of fire pixel |
kelvins |
32-bit floating point |
0 |
na |
na |
| Channel 31 brightness temperature of fire pixel |
kelvins |
32-bit floating point |
0 |
na |
na |
| Channel 21/22 brightness temperature of background |
kelvins |
32-bit floating point |
0 |
na |
na |
| Channel 31 brightness temperature of background |
kelvins |
32-bit floating point |
0 |
na |
na |
| Mean background brightness temperature difference |
kelvins |
32-bit floating point |
0 |
na |
na |
| Background channel 21/22 brightness temperature mean absolute deviation |
kelvins |
32-bit floating point |
0 |
na |
na |
| Background channel 31 brightness temperature mean absolute deviation |
kelvins |
32-bit floating point |
0 |
na |
na |
| Background brightness temperature difference mean absolute deviation |
kelvins |
32-bit floating point |
0 |
na |
na |
| Total radiative power |
megawatts |
32-bit floating point |
0 |
na |
na |
| Number of adjacent cloud pixels |
na |
8-bit unsigned integer |
na |
0 -8 |
na |
| Number of adjacent water pixels |
na |
8-bit unsigned integer |
na |
0 - 8 |
na |
| Background window size |
na |
8-bit unsigned integer |
na |
0 - 21 |
na |
| Number of valid background pixels |
na |
16-bit signed integer |
na |
0 - 438 |
na |
| Detection confidence |
% |
8-bit unsigned integer |
na |
0 -100 |
na |
| Climate Modeling Grid information |
na |
16-bit unsigned integer |
na |
na |
na |
Print or save this information in .pdf format
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 Retrieve the MOD14v4 MODIS product through the LP DAAC Data Pool
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Via FTP Directory: ftp://e0dps01u.ecs.nasa.gov/MOLT/MOD14.004/
Order Data through the EOS Data Gateway
( http://edcimswww.cr.usgs.gov/pub/imswelcome/)
EOS Data Gateway Search Tips
| Data Center: |
LPDAAC |
| Sensor: |
MODIS |
| Dataset: |
MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km |
| Geographic Extent: |
Type Lat/Long Range or Draw on Map |
| Temporal Extent: |
2000-02-24 to present |
Product Information
Contact Information
|
