Search found 47 matches

by jcfischer
Fri Dec 15, 2017 10:13 am America/New_York
Forum: Home
Question: Product Information Kd_490
Replies: 3

Product Information Kd_490

Dear colleagues, I have a question in regard to the diffuse attenuation coefficient product Kd_490. I am using this product for my study of the coastal water turbidity around La Réunion. The Kd_490 values vary with the water depth and no data of that coefficient is provided for nearshore areas and r...
by jcfischer
Fri Dec 15, 2017 9:48 am America/New_York
Forum: Home
Question: Creation of level 3 Kd_490 files
Replies: 6

Creation of level 3 Kd_490 files

Thank you very much for replying and all the useful input! I thought a lot about the fact of (turbidity) fronts moving with the tides, grouped images representing the same tide status and tried to create representative composites. In fact, I realized that the horizontal movement of the (surface) wat...
by jcfischer
Tue Dec 12, 2017 11:35 am America/New_York
Forum: Home
Question: Processing of L1A_LAC.x.hdf files
Replies: 2

Processing of L1A_LAC.x.hdf files

Dear Sean,
thanks for the answer! With renamed files it all works well.
Regarding the resolution, I will stick to the 1 km resolution images.
by jcfischer
Sun Dec 03, 2017 8:30 pm America/New_York
Forum: Home
Question: Time format MODIS files
Replies: 2

Time format MODIS files

Thanks for the explanation!
by jcfischer
Fri Dec 01, 2017 11:55 am America/New_York
Forum: Home
Question: Time format MODIS files
Replies: 2

Time format MODIS files

Dear colleagues, I have a question regarding the time format of MODIS files. Which time zone does the time displayed in the Metadata, Global_Attributes refer to? For example, the time_coverage_start for a MODIS file from the 1st of January 2010 is 2010-01-01T10:40:08.634Z. Does this mean this is 40 ...
by jcfischer
Thu Nov 30, 2017 1:15 pm America/New_York
Forum: Home
Question: Processing of L1A_LAC.x.hdf files
Replies: 2

Processing of L1A_LAC.x.hdf files

Dear colleagues, I have the following problem: I want to create L3 files of the parameter Kd_490 out of L1 files (MODIS data). I can´t use the provided L3 Kd_490 product because the resolution (4 and 9 km) is too coarse. Even a 1 km resolution is too coarse. That´s why I process the L1 files in SeaD...
by jcfischer
Thu Nov 30, 2017 8:48 am America/New_York
Forum: Home
Question: Install netCDF4 Python module
Replies: 2

Install netCDF4 Python module

Thank you very much! I managed to successfully install SeaDAS.
by jcfischer
Fri Oct 27, 2017 6:55 am America/New_York
Forum: Home
Question: Creation of level 3 Kd_490 files
Replies: 6

Creation of level 3 Kd_490 files

Thank you both very much for answering! The RAM available in the virtual machine was set to 4 GB. The use of the order data function helped. The processing of (spatially) smaller files takes way less time and I can load the created level 2 files in the SeaDAS GUI. This also works with only 2 GB allo...
by jcfischer
Tue Oct 24, 2017 1:39 pm America/New_York
Forum: Home
Question: Creation of level 3 Kd_490 files
Replies: 6

Creation of level 3 Kd_490 files

Dear all, I would be very happy about some help regarding the creation of level 3 files of the diffuse attenuation coefficient at 490 nm. Those respective files can be directly downloaded in 4 and 9 km resolution but for my turbidity study I need higher resolution data. Therefore, I tried to create ...
by jcfischer
Tue Oct 10, 2017 12:59 pm America/New_York
Forum: Home
Question: Install netCDF4 Python module
Replies: 2

Install netCDF4 Python module

Dear all, I am about to install SeaDAS under Linux Mint. I followed the instructions (https://seadas.gsfc.nasa.gov/tutorials/installation_tutorial/) but struggle to install the netCDF4 python module (under point 8 in the tutorial). The link for the netCDF4 source code download does not work. I tried...