Forum

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...

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...

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.

Thanks for the explanation!

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 ...

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...

Thank you very much! I managed to successfully install SeaDAS.

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...

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 ...

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...