Resources

[White Paper ]TOA Radiance Reflectance Conversion of KOMPSAT 1.5

White Paper
Author
SI Imaging Services
Date
2018-07-02 04:33
Views
5698
1. DN to TOA reflectance conversion of KOMPSAT Imagery
The top-of-atmosphere(TOA) reflectance is an important physical value to compare products from different sensors. In this document, the methodology to convert digital number (DN) of KOMPSAT imagery to TOA reflectance is explained and related parameters are given.

2. KOMPSAT-3 parameters

Following table shows Gain to be used for the calculation of TOA radiance from DN of KOMPSAT-3 imagery updated through filed campaign in 2014 and ESUN to be used for TOA reflectance calculation. The Offset for each band equals to zero due to dark current compensation.

Band Gain ESUN
MS 1 (Blue) 0.01811 2001.28
MS 2 (Green) 0.02541 1875.46
MS 3 (Red) 0.02023 1524.52
MS 4 (NIR) 0.01300 1027.38

Table 1. Gain and ESUN for KOMPSAT-3 (2014)


3. KOMPSAT-2 parameters

Following tables show Gain to be used for the calculation of TOA radiance from DN of KOMPSAT-2 imagery and ESUN to be used for TOA reflectance calculation.

Band TDI Index Gain ESUN
MS 1 (Green) 3 0.124692 1838
MS 2 (Blue) 4 0.117581 1915
MS 3 (NIR) 1 0.135002 1075
MS 4 (Red) 2 0.157563 1534

Table 2. Gain and ESUN for KOMPSAT-2 (TDI High)


For more details, please find attached PDF file.
« KOMPSAT-5 Standard Products Specifications & Product Attributes v1.5
[White Paper] KOMPSAT-2, 3, 3A Imagery Quality Report (April, May 2018) »
List
Powered by KBoard
Number Title Author Date Views
49
[White Paper] KOMPSAT-2, 3, 3A Imagery Quality Report (August, September 2018)
Author SI Imaging Services Date 2018.11.21 Views 5270
SI Imaging Services 2018.11.21 5270
48
[White Paper] KOMPSAT-5 Imagery Quality Report (July & August, 2018)
Author SI Imaging Services Date 2018.09.18 Views 5606
SI Imaging Services 2018.09.18 5606
47
[White Paper] KOMPSAT-2, 3, 3A Imagery Quality Report (June & July, 2018)
Author SI Imaging Services Date 2018.08.21 Views 5478
SI Imaging Services 2018.08.21 5478
46
[White Paper] KOMPSAT-5 Imagery Quality Report (May & June, 2018)
Author SI Imaging Services Date 2018.08.16 Views 5213
SI Imaging Services 2018.08.16 5213
45
KOMPSAT-5 Orthorectification processing with SNAP
Author SI Imaging Services Date 2018.08.03 Views 6560
SI Imaging Services 2018.08.03 6560
44
[White Paper] KOMPSAT-2, 3, 3A Imagery Quality Report (April, May 2018)
Author SI Imaging Services Date 2018.07.06 Views 5322
SI Imaging Services 2018.07.06 5322
43
[White Paper ]TOA Radiance Reflectance Conversion of KOMPSAT 1.5
Author SI Imaging Services Date 2018.07.02 Views 5698
SI Imaging Services 2018.07.02 5698
42
KOMPSAT-5 Standard Products Specifications & Product Attributes v1.5
Author SI Imaging Services Date 2018.06.25 Views 6568
SI Imaging Services 2018.06.25 6568
41
[White Paper] KOMPSAT-5 Imagery Quality Report (March & April, 2018)
Author SI Imaging Services Date 2018.05.21 Views 5327
SI Imaging Services 2018.05.21 5327
40
KOMPSAT Sensor Model Support Software Status (April 1st 2018)
Author SI Imaging Services Date 2018.05.14 Views 5682
SI Imaging Services 2018.05.14 5682
Powered by KBoard