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Description

The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) FIre Light Detection Algorithm-2 (FILDA-2) Modified Combustion Efficiency (MCE) swath product (VNP47MOD) is produced in 6-minute orbit segments at 750 meter (m) resolution. The VNP47MOD product takes advantage of the rich information that visible band observation conveys at night to assess fire combustion efficiency and enhance fire detection. It also utilizes improvements made in fire detection algorithms to detect smaller and cooler fires.

The VNP47MOD product includes 85 layers containing fire detection and retrievals of Radiative Power (FRP), fire Visible Energy Fraction (VEF), and Modified Combustion Efficiency (MCE).

Known Issues

Version Description

Collection Version 2 Processing and Reprocessing

Product Summary

Platforms
Suomi-NPP
Instruments
VIIRS
Spatial Extent
N: 90 S: -90 E: 180 W: -180
Spatial Resolution
750 Meters x 750 Meters
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2012-01-19 to Present
Temporal Resolution
1 Day
Data Partner
Land Science Investigator-led Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/LandSIPS)
Land Processes Distributed Active Archive Center (LP DAAC)
Concept ID
C3365181544-LPCLOUD
Data State
ACTIVE
Processing Level
2
Published
Updated
Science Keywords
Fire Occurrence,
Surface Thermal Properties

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Wang, J. (2025). VIIRS/NPP FILDA-2 Fire Modified Combustion Efficiency Product 6-min L2 Swath 750m V002 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/VIIRS/VNP47MOD.002 Date Accessed: 2025-10-30

File Naming Convention

VNP47MOD.A2025230.0824.002.2025230203357.nc

The file name begins with the Product Short Name (VNP47MOD) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2025230), the Hours and Minutes of Acquisition provided as HHMM (0824), the Version of the data collection (002), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2025230203357), and the Data Format (nc).

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
Algorithm_QA Algorithm_QA N/A uint32 4294967295 4294967295 N/A
DNB_observations DNB radiance of fire pixel nW/sr/m² uint32 9 9 N/A
Fire_mask Fire_mask N/A int8 -127 -127 N/A
FP_AdjCloud Number of adjacent cloud pixel N/A int8 -127 -127 N/A
FP_AdjWater Number of adjacent water pixel N/A int8 -127 -127 N/A
FP_Area Pixel area m² float32 9 9 N/A
FP_BG_Temp Estimated background temperature Kelvin float32 9 9 N/A
FP_Bowtie Fraction of bowtie effect N/A float32 9 9 N/A
FP_BTD_Mean Mean background brightness temperature difference (I04-I05) Kelvin float32 9 9 N/A
FP_CM Cloud Mask N/A int8 -127 -127 N/A
FP_Confidence Detection confidence N/A int8 -127 -127 N/A
FP_DNB_POS DNB abnormal possibility N/A float32 9 9 N/A
FP_Fire_Frac Estimated fire fraction N/A float32 9 9 N/A
FP_Fire_Temp Estimated fire temperature Kelvin float32 9 9 N/A
FP_Gas_Flaring Gas Flaring flag N/A int8 -127 -127 N/A
FP_I04_Mean I04 (3.74 um) brightness temperature of background Kelvin float32 9 9 N/A
FP_I04_Rad I04 (3.74 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_I04_Rad_Mean Background mean I04 (3.74 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_I04_Rad_Num Number of background I04 (3.74 um) pixel N/A int16 -32767 -32767 N/A
FP_I05_Mean I05 (11.45 um) brightness temperature of background Kelvin float32 9 9 N/A
FP_I05_Rad I05 (11.45 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_I05_Rad_Mean Background mean I05 (11.45 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_I05_Rad_Num Number of background I05 (11.45 um) pixel N/A int16 -32767 -32767 N/A
FP_Land_Type MODIS Land cover product MCD12C1 N/A int8 -127 -127 N/A
FP_Latitude Latitude of fire pixel Degree float32 9 9 N/A
FP_Line Granule line of fire pixel N/A int16 -32767 -32767 N/A
FP_Longitude Longitude of fire pixel Degree float32 9 9 N/A
FP_M07_Rad M07 (0.865 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M07_Rad_Mean Background mean M07 (0.865 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M07_Rad_Num Number of background M07 (0.865 um) pixel N/A int16 -32767 -32767 N/A
FP_M08_Rad M08 (1.24 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M08_Rad_Mean Background mean M08 (1.24 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M08_Rad_Num Number of background M08 (1.24 um) pixel N/A int16 -32767 -32767 N/A
FP_M10_Rad M10 (1.61 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M10_Rad_Mean Background mean M10 (1.61 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M10_Rad_Num Number of background M10 (1.61 um) pixel N/A int16 -32767 -32767 N/A
FP_M11_Rad M11 (2.25 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M11_Rad_Mean Background mean M11 (2.25 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M11_Rad_Num Number of background M11 (2.25 um) pixel N/A int16 -32767 -32767 N/A
FP_M12_Rad M12 (3.7 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M12_Rad_Mean Background mean M12 (3.7 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M12_Rad_Num Number of background M12 (3.7 um) pixel N/A int16 -32767 -32767 N/A
FP_M13_Rad M13 (4.05 um) radiance for FRP calculation W/m²/sr/μm float32 9 9 N/A
FP_M13_Rad_MAD Background median absolute devaiation of M13 (4.05um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M13_Rad_Mean Background mean M13 (4.05 um) radiance for FRP calculation W/m²/sr/μm float32 9 9 N/A
FP_M13_Rad_Num Number of background M13 (4.05 um) pixel for FRP calculation N/A int16 -32767 -32767 N/A
FP_M13_WinSize M13 (4.05 um) spatial window size for FRP calculation N/A int16 -32767 -32767 N/A
FP_M14_Rad M14 (8.55 um) radiance of the fire pixel W/m²/sr/μm float32 9 9 N/A
FP_M14_Rad_Mean Background mean M14 (8.55 um) radiance W/m²/sr/μm float32 9 9 N/A
FP_M14_Rad_Num Number of background M14 (8.55 um) pixel N/A int16 -32767 -32767 N/A
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