## Search found 18 matches

Thu Oct 27, 2022 5:23 am America/New_York
Forum: Home
Question: How to reproject MODIS L2 data via Python?
Replies: 2

### Re: How to reproject MODIS L2 data via Python?

got it thanks
Sun Oct 23, 2022 11:14 pm America/New_York
Forum: Home
Question: How to reproject MODIS L2 data via Python?
Replies: 2

### How to reproject MODIS L2 data via Python?

Hi all, I tried to reproject MODIS L2 data(AQUA_MODIS.20200227T052500.L2.OC.nc) to geotiff using Python, tired GCP but the result was a little misplaced. Also found that part of the lat and lon of the data is not monotonically increasing(see the picture attached), why is this and how should I deal w...
Tue Jun 28, 2022 9:53 pm America/New_York
Forum: Home
Question: How to derive Lw from Rrs product
Replies: 4

### Re: How to derive Lw from Rrs product

got it thanks!
Mon Jun 27, 2022 10:49 pm America/New_York
Forum: Home
Question: How to derive Lw from Rrs product
Replies: 4

### Re: How to derive Lw from Rrs product

Hi Guoqing, Thanks for your anwser! The reason why I want to get Lw is I'm trying to calculate Lt(the formula below), and will calculate Lr,La,Lg,Lwc through corresponding model and look-up table, but unable to get in-situ Lw data for my study area, so I'm thinking about derive it from Rrs, seems th...
Mon Jun 27, 2022 5:50 am America/New_York
Forum: Home
Question: How to derive Lw from Rrs product
Replies: 4

### How to derive Lw from Rrs product

I wanna derive Lw from Rrs product, found this formula on Rrs algorithm description page: Rrs(λ)=(Lw(λ)/(F0fscos(θs)tds)fb(λ)fλ F0 = extraterrestrial solar irradiance (Thuillier et al. 2003) fs= adjustment of F0 for variation in Earth-Sun distance fb = bidirectional reflectance correction fλ = corre...
Thu Aug 06, 2020 4:14 am America/New_York
Forum: Home
Question: unable to install ocssw
Replies: 4

### unable to install ocssw

more info:\$ which git/usr/local/bin/git\$ git versiongit version 2.10.1macOS 10.13.4 (17E199)when trying GUI, showing :execution exception: java.io.IOException: install_ocssw.py failed with exit code 1.Check log for more details.Installing bundles.sha256sum (1 of 10)  % Total    % Rece...
Thu Aug 06, 2020 1:57 am America/New_York
Forum: Home
Question: unable to install ocssw
Replies: 4

### unable to install ocssw

Hi all,I just download the 7.5.3 version of seadas on my Mac, but unable to install ocssw no matter using GUI or manually. These are the errors I got:0curl: (7) Failed to connect to oceandata.sci.gsfc.nasa.gov port 443: Operation timed outError - Executing command "cd /Applications/seadas-7.5.3...
Mon Jun 11, 2018 9:34 am America/New_York
Forum: Home
Question: Got weird result from processing Landsat 8 with l2gen
Replies: 2

### Got weird result from processing Landsat 8 with l2gen

Thanks a lot, it works!

Ruizhe
Mon Jun 11, 2018 9:33 am America/New_York
Forum: Home
Question: What is the calfile for Sentinel 2 L1C process in l2gen?
Replies: 4

### What is the calfile for Sentinel 2 L1C process in l2gen?

Hi don,

Thanks for the help, I got this solved by install_ocssw.py --git-branch=v7.5 --msis2b.

Thanks!
Ruizhe
Fri Jun 08, 2018 11:11 am America/New_York
Forum: Home
Question: Got weird result from processing Landsat 8 with l2gen
Replies: 2

### Got weird result from processing Landsat 8 with l2gen

The result I got from processing Landsat 8 with l2gen has weird edge(as fig.1), seems the land mask isn't very good.

fig1:

fig2 is processed by ACOLITTE, which is normal

fiug2:

Any idea?

Thanks a lot.
Ruizhe