Search found 17 matches

by hxczjh123
Thu Apr 05, 2018 10:52 am America/New_York
Forum: All Questions/Comments
Question: Level2 Products about Rrs
Replies: 6

Level2 Products about Rrs

Danny,
Thank you so much for your help!
by hxczjh123
Thu Apr 05, 2018 4:23 am America/New_York
Forum: All Questions/Comments
Question: Level2 Products about Rrs
Replies: 6

Level2 Products about Rrs

Danny,Thank you so much for your help!Yes,I want to validate Rrs with nlw .I have other questions when I read some papers:Wang(2012) developed a NIR atmospheric correction algorithm for GOCI:Atmospheric correction using Near-infrared bands for satellite ocean color data processing in the turbid west...
by hxczjh123
Wed Apr 04, 2018 5:46 am America/New_York
Forum: All Questions/Comments
Question: Level2 Products about Rrs
Replies: 6

Level2 Products about Rrs

Hello,
Are the Rrs in Level2 Products not including NIR Rrs?(such as:VIIRS?Aqua)?
If I want to validate NIR nLw after atmospheric correction,I can only use GOCI?
Thanks for your help!
by hxczjh123
Tue Apr 03, 2018 6:58 am America/New_York
Forum: All Questions/Comments
Question: Atmospheric correction of NIR-SWIR method
Replies: 1

Atmospheric correction of NIR-SWIR method

Hello everyone,
Wang(2007) proposed NIR-SWIR method using turbid water index.I don't know why they use 1240nm and 750nm to calculate Tind(750,1240)?
Why not use 1640nm and 750nm:Tind(750,1640)? I think the signal noise ratio at 1640nm is higher than 1240nm for MODIS.
Thank you so much for your help!
by hxczjh123
Wed Jan 24, 2018 8:03 pm America/New_York
Forum: All Questions/Comments
Question: How to calculate MODIS/Aqua Rayleigh reflectance using Rayleigh look up tables
Replies: 4

How to calculate MODIS/Aqua Rayleigh reflectance using Rayleigh look up tables

Dear Sean,Thank you for your help!I have another question,if I use 6SV1.0B to calculate Rayleigh reflectance,the results will output like this:                           Rayleigh     aerosol      ...
by hxczjh123
Sun Jan 21, 2018 9:05 pm America/New_York
Forum: All Questions/Comments
Question: How to calculate MODIS/Aqua Rayleigh reflectance using Rayleigh look up tables
Replies: 4

How to calculate MODIS/Aqua Rayleigh reflectance using Rayleigh look up tables

Hello everyone,Recently,I confused that how to calculate MODIS/Aqua Rayleigh reflectance using Rayleigh look up tables:     rayleigh_modisa_412_iqu.hdf     rayleigh_modisa_443_iqu.hdf     rayleigh_modisa_469_iqu.hdf     ...1. In MODIS/Aqua ...