Search found 117 matches

by davidh
Mon Jun 29, 2020 11:49 am
Forum: Geo2Grid
Topic: Using GPU to accelerate Geo2Grid
Replies: 2
Views: 16386

Re: Using GPU to accelerate Geo2Grid

Hi Chris, I'm just getting back from leave and have been thinking about this for a couple days and would like to add to Kathy's response. This is just some extra information for anyone who is interested in this topic in the future. As Kathy said, we depend heavily on Xarray and Dask and there is a l...
by davidh
Thu Jun 11, 2020 10:13 am
Forum: Geo2Grid
Topic: Simply reprojecting GOES-17 Data
Replies: 3
Views: 19281

Re: Simply reprojecting GOES-17 Data

Hi, This is actually a bug in Geo2Grid. It is very rare and we had a lot of trouble tracking it down, so congratulations? The good news is it should be fixed in a patch release of Geo2Grid that we haven't released yet (due to so few users running into this issue). If you could try downloading this g...
by davidh
Wed Jun 10, 2020 9:25 am
Forum: Geo2Grid
Topic: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction
Replies: 6
Views: 22330

Re: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction

Last question, if I used the "--dtype float32 --no-enhance", the wrong standard name shouldn't affect the process right?
Correct. It should skip the enhancing/scaling part and store the "raw" (sunz/rayleigh) reflectance values.
by davidh
Tue Jun 09, 2020 8:50 am
Forum: Geo2Grid
Topic: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction
Replies: 6
Views: 22330

Re: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction

In your composites config, you have standard_names like: standard_name: B01C Did you change these? I'm guessing these used to be `toa_bidirectional_reflectance`. Most enhancements are configured by standard_name. This way it is easy to say "all reflectances should be enhanced this way, all brig...
by davidh
Mon Jun 08, 2020 1:08 pm
Forum: Geo2Grid
Topic: GEO2GRID Verification Failure
Replies: 4
Views: 16978

Re: GEO2GRID Verification Failure

Thanks for the extra info. It looks like the path to the input data isn't correct. You specified "-f ../input" but Geo2Grid wasn't able to find any files in that directory or was not able to find that directory at all. Can you verify that there are ABI L1b NetCDF files in that directory?
by davidh
Mon Jun 08, 2020 9:04 am
Forum: Geo2Grid
Topic: GEO2GRID Verification Failure
Replies: 4
Views: 16978

Re: GEO2GRID Verification Failure

Hi, Would it be possible for you to run Geo2Grid with an extra "-v" command line flag? Or you could attach the log file it created here. There isn't enough information in the provided output to debug this, but with the extra output (from -v or the log file) I might be able to make some gue...
by davidh
Mon Jun 08, 2020 9:01 am
Forum: Geo2Grid
Topic: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction
Replies: 6
Views: 22330

Re: Geo2Grid v 1.0.1 Sunz and Rayleigh Correction

As far as I remember there were no intentional changes to the sunz or rayleigh corrections in Satpy. One thing I'm noticing is the portion of your log that says: [2020-06-05 00:00:12,906] : PID 148 : DEBUG : satpy.writers : apply : Enhancement configuration options: [{'name': 'stretch', 'method': <f...
by davidh
Sun Feb 16, 2020 9:59 am
Forum: Geo2Grid
Topic: Himawari-8 Cloud mask
Replies: 7
Views: 21074

Re: Himawari-8 Cloud mask

Changing the saved data type should not affect any corrections applied. The general data flow is: read -> resample -> corrections -> composite (ex. RGB) -> enhance/scale to fit "dtype" -> save to disk Resampling may move after corrections or after composites depending what is being done. C...
by davidh
Tue Feb 11, 2020 10:38 am
Forum: Geo2Grid
Topic: Himawari-8 Cloud mask
Replies: 7
Views: 21074

Re: Himawari-8 Cloud mask

Hi there, You have two good options from what I can see: 1. Use the `--dtype float32` flag and the `--no-enhance` flag when generating geotiffs to produce floating point geotiffs with the real observed values. You should then be able to load these in to other programming languages as long as they su...
by davidh
Mon Feb 03, 2020 1:06 pm
Forum: Polar2grid
Topic: GDAL 3.0.2 error when using gdal_merge.py
Replies: 3
Views: 20430

Re: GDAL 3.0.2 error when using gdal_merge.py

Hi Nik, Is the error message you are getting: pkg_resources.DistributionNotFound: The 'GDAL==3.0.2' distribution was not found and is required by the application To make direct calls to "gdal_merge.py" you'll need to "source" the Polar2Grid environment by doing: source $POLAR2GRI...