Search found 665 matches

by gnwiii
Fri Oct 29, 2021 7:49 am America/New_York
Forum: Questions/Comments
Question: (Log file directory is not accessible to write) Install Seadas 8.1.0, WSL, Windows 10, OCSSW
Replies: 42

Re: (Log file directory is not accessible to write) Install Seadas 8.1.0, WSL, Windows 10, OCSSW

Hi, Gnwiii, for your questions, please, see below. 1) The message below come up when I ingest the OLCI image (Seadas GUI --> l2gen) "# WARNING!!! Mission directory 'C:\home\negri\ocssw\share\olci' does not exist" This could be due to running bash from a non-WSL package (rtool40, cygwin, W...
by gnwiii
Thu Oct 28, 2021 9:10 am America/New_York
Forum: Questions/Comments
Question: l2bin/l3bin/l3mapgen distortion for non-standard data product
Replies: 8

Re: l2bin/l3bin/l3mapgen distortion for non-standard data product

Thank you for the reply. I am pretty sure I had a used the get_product_info command after editing the product.xml file to see if it was added, but I should double check to see how it fully compares with the standard chla product. If the .xml is bad, the binning and mapping would complain, so I susp...
by gnwiii
Wed Oct 27, 2021 2:48 pm America/New_York
Forum: Questions/Comments
Question: l2bin/l3bin/l3mapgen distortion for non-standard data product
Replies: 8

Re: l2bin/l3bin/l3mapgen distortion for non-standard data product

A number of years ago I was able to add a non-standard product to NASA level-2 files and did not encounter problems with mapping. My guess is that the xml file is not the cause. Looking at the NetCDF header with "ncdump -h" for differences between NASA chl variables and the new variable mi...
by gnwiii
Wed Oct 27, 2021 2:03 pm America/New_York
Forum: Questions/Comments
Question: Bulk downloading files using python
Replies: 7

Re: Bulk downloading files using python

As long as curl is working -- go for it. Curl has worked for me in the past, but was not very reliable. I think older software (curl, and wget before wget2) have logic to deal with older web services which can result in mishandling of issues with modern services, and particularly single-sign-on (SSO...
by gnwiii
Wed Oct 27, 2021 11:22 am America/New_York
Forum: Questions/Comments
Question: Bulk downloading files using python
Replies: 7

Re: Bulk downloading files using python

The post you are using is not for oceancolor. You should follow the instructions for Ocean Color Data ( https://oceancolor.gsfc.nasa.gov/data/download_methods/ ). The python script you can download from that page does work with Cygwin (using the Cygwin terminal with bash or zsh), native windows, or ...
by gnwiii
Tue Oct 26, 2021 5:45 pm America/New_York
Forum: Questions/Comments
Question: Bulk downloading files using python
Replies: 7

Re: Bulk downloading files using python

See: https://oceancolor.gsfc.nasa.gov/data/download_methods/ for a python script. There are also ways to get lists of files to download, file checksums, etc.
by gnwiii
Tue Oct 26, 2021 4:08 pm America/New_York
Forum: Questions/Comments
Question: MODIS Aqua Chl-a Product
Replies: 11

Re: MODIS Aqua Chl-a Product

Not sure what you mean by 'each MOD05_L2 product file covers a five-minute time interval (based on the start time of each MODIS Level-1B granule)' means the MOD05_L2 product has 5 minute time interval of chl-a product on global scale? The MODIS sensor scans across the track, so each 5-minute granual...
by gnwiii
Tue Oct 26, 2021 6:32 am America/New_York
Forum: Questions/Comments
Question: MODIS Aqua Chl-a Product
Replies: 11

Re: MODIS Aqua Chl-a Product

Daily products just combine the available granuals, so can't capture the details when there are rapid changes in chlorophyll level. Other products (PAR) that have daily cycles, aren't usable on time scales less than 30 days, but daily products are still generated and then used to produce monthly pro...
by gnwiii
Mon Oct 25, 2021 9:28 pm America/New_York
Forum: Questions/Comments
Question: PAR L3 product - Unexpected patterns
Replies: 3

Re: PAR L3 product - Unexpected patterns

https://oceancolor.gsfc.nasa.gov/docs/ancillary/ describes the current sea-ice data set under "Ancillary Data/Surface Properties". I'm not sure what was used for the existing MODIS Aqua processing. The patterns you see are probably due to low resolution of the ice data. When doing an annu...
by gnwiii
Mon Oct 25, 2021 5:47 pm America/New_York
Forum: Questions/Comments
Question: MODIS Aqua Chl-a Product
Replies: 11

Re: MODIS Aqua Chl-a Product

Firstly, the orbital period is 99 minutes means it takes 99 minutes for the Aqua satellite to move from the south pole to the north pole. Am I correct? The orbital period is time for a complete orbit, so south pole to north pole and back around to south pole. Secondly, you mentioned over 24 hours w...