Essential Information on use of ADEOS/OCTS data

OCTS Standard Products ( LAC )

nLw: Normalized Water Leaving Radiance, La: Aerosol Radiance, ta: Optical Thickness at 865nm, QF: Quality Flag/Mask
Category Processing Level Processing Content Product Type Number of Files / Contents Unit Scene Size
byte*pixel*line*band
LAC Level 1A Uncorrected Image Level 0 data, full resolution, edited by scene unit, annotated with radiometric and geometric calibration coefficients. VNIR:
L1AVNL		 1/B1~B8 LAC Scene 2*2K*5.6K*8
=171MB
TIR:
L1ATIL		 1/B9~B12 ditto 2*2K*5.6K*4
=85MB
Level 1B Radiometrically corrected and interband registered data of Level 1A. VNIR:
L1BVNL		 1/B1~B8 ditto 2*2K*5.6K*8
=171MB
TIR:
L1BTIL		 1/B9~B12 ditto 2*2K*5.6K*4
=85MB
Level 2 Radiometrically / band to band registration corrected of Level 1A and interpreted geophysical parameter. Ocean Color:
L2OCL(1)		 1/5nLw,3La, e, ta ditto 2*2K*5.6K*8
+1*2K*5.6K*2
=192MB
Ocean Color:
L2OCL(2)		 1/Pigment Concentration, Chlorophyll a, K490, QF ditto 2*2K*5.6K*4
=85MB
Vegetation:
L2VIL		 1/Vegetation Index ditto 2*2K*5.6K*1
=21MB
Sea Surface Temp.:
L2STL		 1/Sea Surface Temp. ditto 2*2K*5.6K*1
=21MB




OCTS Standard Products ( GAC )

nLw: Normalized Water Leaving Radiance, La: Aerosol Radiance, ta: Optical Thickness at 865nm, QF: Quality Flag/Mask
Category Processing Level Processing Content Product Type Number of Files & Contents Unit Scene Size
byte*pixel*line*band
GAC Level 1A Uncorrected Image Level 0 data, sub sample by 4km, edited by scene unit. Annotated with radiometric and geometric calibration coefficients. VNIR:
L1AVNG		 1/B1~B8 Tilt
Segment		 2*350*2.3K*8
=12MB
TIR:
L1ATIG		 1/B9~B12 ditto 2*350*2.3K*4
=6MB
Level 2 Radiometrically / band to band registration corrected of Level 1A and interpreted geophysical parameter. Ocean Color:
L2OCG(1)		 1/5nLw,3La, e, ta Tilt
Segment		 2*350*2.3K*8
+1*350*2.3K*2
=14MB
Ocean Color:
L2OCG(2)		 1/Pigment Concentration,
Chlorophyll a, K490,QF		 ditto 2*350*2.3K*4
=6MB
Vegetation:
L2VIG		 1/Vegetation Index ditto 2*350*2.3K*1
=2MB
Sea Surface Temp.:
L2STG		 1/Sea Surface Temp. ditto ditto
Level 3
Binned		 Spatial and time binning data from Level 2. -1day, 1week, 1month and 1year bins. Ocean Color:
Daily:L3BOCD		 6/Bin Information,
5nLw+3La+e+ta,
Pigment Concentration,
Chlorophyll a, K490,
Integral Chlorophyll		 Global
Bin		 14*1.6M+8*1.6M*14
=202MB
Ocean Color:
Weekly: L3BOCW		 ditto ditto 14*4M+8*4M*14
=504MB
Ocean Color:
Monthly: L3BOCM		 ditto ditto ditto
Ocean Color:
Yearly: L3BOCY		 ditto ditto ditto




LIB-VNI/TI Geophysical conversion factors
: Physical_Value = Product_Count x Slope + Intercept

Sensor Band Slope Intercept Physical Value Unit
(mu) : mu sign
Ocean/Normal Land/Normal Ocean/High Land/High Gain1 Gain2 Gain3
Visible and
Near-infrared		 1 0.004148 0.004141 0.002767 0.002764


0.0 mW/cm^2/(mu)m/sr
2 0.00408 0.00408 0.002719 0.002948


0.0 mW/cm^2/(mu)m/sr
3 0.003423 0.006534 0.002275 0.004333


0.0 mW/cm^2/(mu)m/sr
4 0.003043 0.007352 0.002027 0.004877


0.0 mW/cm^2/(mu)m/sr
5 0.002376 0.008142 0.001592 0.005422


0.0 mW/cm^2/(mu)m/sr
6 0.001521 0.006748 0.00104 0.004527


0.0 mW/cm^2/(mu)m/sr
7 0.00103 0.005911 0.0007053 0.00395


0.0 mW/cm^2/(mu)m/sr
8 0.0005008 0.004961 0.000342 0.003328


0.0 mW/cm^2/(mu)m/sr
Thermal
infrared		 9



0.00001519 0.000007615 0.000003346 0.0 mW/cm^2/sr
10



0.0002324 0.0001627 0.0001164 0.0 mW/cm^2/sr
11



0.0002721 0.0002105 0.0001565 0.0 mW/cm^2/sr
12



0.0004253 0.0003438 0.0002607 0.0 mW/cm^2/sr




L2 Geophysical conversion factors
:pyusical_Value = Product_Count x Slope + Intercept

Product Geophysical Parameter Slope Intercept Unit
(mu) : mu sign
Ocean Color 1 nLw_412 0.001 0.0 mW/cm^2/(mu)m/sr
nLw_443 0.001 0.0 mW/cm^2/(mu)m/sr
nLw_490 0.001 0.0 mW/cm^2/(mu)m/sr
nLw_520 0.001 0.0 mW/cm^2/(mu)m/sr
nLw_565 0.001 0.0 mW/cm^2/(mu)m/sr
La_670 0.001 0.0 mW/cm^2/(mu)m/sr
La_765 0.001 0.0 mW/cm^2/(mu)m/sr
La_865 0.001 0.0 mW/cm^2/(mu)m/sr
eps_68 0.01 0.0 -
tau_865 0.005 0.0 -
Ocean Color 2 CZCS_pigment 0.001 0.0 mg/m^3
Chlor_a 0.001 0.0 mg/m^3
K_490 0.0002 0.0 m^-1
Vegetation Indices VI 0.002 -1.0 -
Sea Surface Temperature SST 0.04 271.15 kelvin




L3Map Geophysical conversion factors (1/2)
: Physical_Value = Product_Count x slope + Intercept

Sensor Band Slope Intercept Physical Value Unit
(mu) : mu sign
Ocean/Normal Land/Normal Ocean/High Land/High Gain1 Gain2 Gain3
Visible and
Near-infrared		 1 0.070424448 0.070305603 0.046977929 0.046926995


0.0 mW/cm^2/(mu)m/sr
2 0.069612694 0.069612694 0.046391401 0.050298584


0.0 mW/cm^2/(mu)m/sr
3 0.055840131 0.106590538 0.037112561 0.070685155


0.0 mW/cm^2/(mu)m/sr
4 0.049511878 0.119622519 0.032980801 0.079352424


0.0 mW/cm^2/(mu)m/sr
5 0.039201452 0.134334268 0.026266293 0.089457185


0.0 mW/cm^2/(mu)m/sr
6 0.025165453 0.111647915 0.017207148 0.074900728


0.0 mW/cm^2/(mu)m/sr
7 0.01698829 0.09749299 0.011632855 0.065149266


0.0 mW/cm^2/(mu)m/sr
8 0.008524255 0.084442553 0.005821277 0.056646809


0.0 mW/cm^2/(mu)m/sr
Thermal
infrared		 9



0.000251991 0.000126327 0.0000555076 0.0 mW/cm^2/sr
10



0.003921039 0.002745065 0.001963894 0.0 mW/cm^2/sr
11



0.004531979 0.003505996 0.002606596 0.0 mW/cm^2/sr
12



0.007298782 0.00590012 0.004474 0.0 mW/cm^2/sr




L3Map Geophysical conversion factors (2/2)
[*1] : Physical_Value = Product_Count x Slope + Intercept
[*2] : Physical_Value = Base** (Product_Count x Slope + Intercept)

Geophysical Parameter Base Slope Intercept Unit
(mu) : mu sign		 Conversion Equation
nLw_412 ~ nLw_565,
La_670 ~ La_865
0.063 0.0 mW/cm^2/(mu)m/sr [*1]
eps_68
0.01 0.0 - [*1]
tau_865
0.005 0.0 - [*1]
CZCS_pigment 10.0 0.015 -2.0 mg/m^3 [*2]
chlor_a 10.0 0.015 -2.0 mg/m^3 [*2]
K_490
0.025 0.0 m^-1 [*1]
VI
-0.0028571429 0.63571429 - [*1]
SST
0.15 271.15 kelvin [*1]




L3Binned Map Geophysical conversion factors
[*1] : Physical_Value = Product_Count x Slope + Intercept
[*2] : Physical_Value = Base** (Product_Count x Slope + Intercept)

Geophysical Parameter Base Slope Intercept Unit
(mu) : mu sign		 Conversion Equation
nLw_412 ~ nLw_565,
La_670 ~ La_865
0.063 0.0 mW/cm^2/(mu)m/sr [*1]
eps_68
0.01 0.0 - [*1]
tau_865
0.005 0.0 - [*1]
CZCS_pigment 10.0 0.015 -2.0 mg/m^3 [*2]
chlor_a 10.0 0.015 -2.0 mg/m^3 [*2]
K_490
0.025 0.0 m^-1 [*1]
VI
-0.0028571429 0.63571429 - [*1]
SST
0.15 271.15 kelvin [*1]




Earth Observation Research Center Earth Observation Research Center
Last Update: 30 November 1998 		Comments to: