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Data Analysis Tools

Satellite Image Products

Introducing satellite image data.

GOCI (Standard; HDF-EOS5)

With the GDPS, L2A (12 types), L2B (5 types), L2C (1 type), L2P (10 types), L3 (5 types), and L3P (4 types) can be produced through a specific algorithm, and the products of water leaving radiance, normalized water leaving radiance, chlorophyll, dissolved organic matter, and total suspended solids are distributed.
[GDPS Products]
GDPS Products
Data Level Abbreviation Products Description Unit
L2A LW (8) Water Leaving Radiance (Lw) Radiance by Band W/m^2/um/sr
NLW (8) Normalized Water Leaving Radiance (nLw) Normalized Radiance by Band W/m^2/um/sr
KD490 Coefficient of Optical Properties of Sea Water - Diffuse Attenuation Coefficient for Downward Irradiance (Kd) Degree to which the solar energy received into the seawater spreads as the depth of water deepens. m^-1
CDOM Dissolved Organic Matter Organic Matter Dissolved in Seawater m^-1
CHL Chlorophyll Chlorophyll Concentration in Phytoplankton in Seawater mg/m^3
TSS Total Suspended Solids Total Suspended Minerals in Seawater g/m^3
RI Red Tide Index Red Tide Occurrence -
VIS Underwater Visibility (Visibility Distance) Horizontal Water Clearness m
LAND_EVI Land Vegetation Index 1 Index Showing the Vitality of Vegetation -
LAND_NDVI Land Vegetation Index 2 Normalized Vegetation Index -
DUST_FMF Aerosol 1 A value representing the characteristics of aerosol (shape function), used to detect yellow dust in the sea -
DUST_AOT Aerosol 2 Aerosol Optical Thickness -
Flag Product Flag Information Specific Pixel Status (e.g. normal processing, atmospheric correction failure, cloud, land, sunglint, etc.) -
L2B A (4) Coefficient of Optical Properties of Sea Water - Extinction Coefficient Extinction coefficient in 4 bands of 400-500 nm m^-1
A_PHYTO(4) Chlorophyll Extinction Coefficient 400-500nm 4개 밴드에서의 클로로필 흡광 계수 -
A_SEDI(4) Suspended Solid Extinction Coefficient Chlorophyll extinction coefficient in 4 bands of 400-500 nm -
A_CDOM(4) Dissolved Organic Matter Extinction Coefficient Dissolved organic matter extinction coefficient in 4 bands of 400-500 nm -
BB (4) Coefficient of Optical Properties of Sea Water - Backscattering Coefficient Backscattering coefficient in 4 bands of 400-500 nm m^-1
L2C Rayleigh Corrected Reflectance(8) Reflectance with Rayleigh scattering removed Removal of reflection by molecular scattering in the atmosphere -
L2P RRS(8) Remote Sensing Reflectance Remote Sensing Reflectance sr^-1
BF(8) Bidirectional Factor Correction of the changes of values, caused by the sunlight angle and the sensor shooting angle -
Longitude Latitude Latitude by Pixel deg
Latitude Longitude Longitude by Pixel deg
Landmask - Cloud (over land (3), over sea (1), land (2), sea (0), coastline (131) masking information -
PHV Satellite Azimuth Angle Satellite Azimuth by Pixel deg
THV Satellite Zenith Angle Satellite Zenith Angle by Pixel deg
SOLA Solar Azimuth Angle Satellite Azimuth by Pixel deg
SOLZ Solar Zenith Angle Solar Zenith Angle by Pixel deg
COSSZ Solar Zenith Angle in the Direction of Cosine Solar Zenith Angle in the Direction of Cosine by Pixel -
L3 FGI Fishery Information Index Fishery information based on food quantity and sea surface temperature (MI, NOAA, etc.) -
WCL Water Quality Index Coastal Water Quality Index -
PP Marine Primary Productivity Calculation of Primary Productivity for the Day mgC /m^2 /d
WCV Current Vector Create as a separate file (*.TXT) -
DP Synthesis of Daily Data Overlapping selected information from L2A data based on eight observation data -
L3P SST Sea Surface Temperature Input data required for the fishery index and the primary productivity deg
PAR Photosynthetically Available Radiation Input data required for the primary productivity -
DL Day-Length Day Length -
[L2 Header (Korean and English Alphabets)]
GDPS Products
Ephemeris Scene center time Time when collecting images of the scene center
Scene start time Image collection start time of the scene
Scene end time Image collection end time of the scene
File Descripter Metadata File format document title File Format Document Title
Product name Product name
processing start time processing start time
processing end time processing end time
processing time processing time
GDPS software version GDPS software version
GDPS processing mode GDPS processing mode
GDPS processing algorithm Unique Algorithm No. by Product
GDPS number of original columns Number of Columns of Original Image
GDPS number of original rows Number of Rows of Original Image
GDPS image start X coord X-pixel coordinate based on the original image when cutting the image
GDPS image start Y coord Y-pixel coordinate based on the original image when cutting the image
Map Projection Map projection name Map Projection Name
Central Longitude (meridian) Central Longitude (meridian)
Central Latitude (parallel) Central Latitude (parallel)
Equitorial radius of Earth ellipsoid Equitorial radius of Earth ellipsoid
Polar radius of Earth ellipsoid Polar radius of Earth ellipsoid
Upper Left X X pixel coordinate of the upper left corner when the center of the image is set to 0
Upper Left Y Y pixel coordinate of the upper left corner when the center of the image is set to 0
Lower Right X X pixel coordinate of the lower right corner when the center of the image is set to 0
Lower Right Y Y pixel coordinate of the lower right corner when the center of the image is set to 0
Radiometric Calibration for GOCI Table for DN to Radiance conversion Table for converting pixel values to radiance ones
Scene Header Scene Title Scene Title
Scene center latitude Scene center latitude
Scene center longitude Scene center longitude
Scene upper-left latitude Scene upper-left latitude
Scene upper-left longitude Scene upper-left longitude
Scene upper-right latitude Scene upper-right latitude
Scene upper-right longitude Scene upper-right longitude
Scene lower-left latitude Scene lower-left latitude
Scene lower-left longitude Scene lower-left longitude
Scene lower-right latitude Scene lower-right latitude
Scene lower-right longitude Scene lower-right longitude
Scene center time Time when collecting images of the scene center
Scene start time Image collection start time of the scene
Scene end time Image collection end time of the scene
number of columns Number of Columns
number of rows Number of Row
pixel spacing pixel spacing
line spacing line spacing

GOCI (Developmental; NETCDF4)

[Level-1B]
GOCI Level-1B Product Format Definition

GOCI-II

[Level-1B]
GOCI-II Level-1B Product Format Definition
[Level-2]
  • GOCI-II Level-2 AC Product Format Definition
  • GOCI-II Level-2 IOP Product Format Definition
  • GOCI-II Level-2 OC Product Format Definition
  • GOCI-II Level-2 AERO Product Format Definition
  • GOCI-II Level-2 Land Product Format Definition