Downloading MODIS using aps_modis(0,0)

[tonianr]

I'm attempting to download the necessary MODIS data for my survey area using the function aps_modis(0,0) however the files won't download.

I downloaded and sourced the path to the get_modis.py file from: https://github.com/jgomezdans/get_modis

But it seems to have different parameters compared to those specified in the TRAIN script: aps_modis_Python.m

Any pointers on how to move forward will be helpful!

[tonianr]

Ended up downloading the HDF files manually from lads: https://ladsweb.modaps.eosdis.nasa.gov

and used gdal to convert them to grd: ! gdalwarp -overwrite HDF4_EOS:EOS_SWATH:"MOD05_L2.A2015072.1545.061.2017320023931.hdf":mod05:Water_Vapor_Near_Infrared -of netCDF MODIS_20150313.nc ! gdal_translate MODIS_20150313.nc -of GMT OSCAR_Modis_20150313.grd

Plotting all converted files to view and they had data.

But for aps_mods(3,3) I keep getting this error: Index in position 2 exceeds array bounds (must not exceed 2). Error in aps_modis_InSAR (line 211) d_modis_no_interp(:,k) = xyz_output_nointerp(:,3) Error in aps_modis (line 116) aps_modis_InSAR

Any help would be appreciated!

[tonianr]

I reran all the aps_modis steps while going through the MatLab scripts.

Here's what I found:

after running step aps_modis(2,2) the _ZWD_gauss.xyz, _ZWD_nointrep.xyz, and *_ZWD_surf.xyz were empty (0 bytes)

• solution(1): make sure GMT is added to PATH or download it and to PATH
• solution(2): edit the Calculate wet delay section of the aps_modis_SAR.m file, the GMT syntax has changed. therefore the command strings in the script should start with '! GMT' i.e. instead of 'grdfilter' its '! gmt grdfilter' , there are about 9 commands to be updated. I also added '-echo' to my MatLab system function e.g. [a,b]=system(grdfil1_cmd, '-echo') to get GMT outputs to the terminal

My xyz files are no longer empty. I however do get this warning from GMT: Calculating wet delay... Warning: 'No data' fill value set to -32768 surface [WARNING]: Your grid dimensions are mutually prime. Convergence is very unlikely. surface [WARNING]: 4213 unusable points were supplied; these will be ignored. surface [WARNING]: You should have pre-processed the data with block-mean, -median, or -mode. surface [WARNING]: Check that previous processing steps write results with enough decimals. surface [WARNING]: Possibly some data were half-way between nodes and subject to IEEE 754 rounding.

[ShadiAbdelhadi]

Apologies I can't answer your question but this the reply I got when inquiring about the get_modis.py https://forum.earthdata.nasa.gov/viewtopic.php?p=13342#p13342 So Far I cannot configure the APS_CONFIG.sh to make TRAIN function properly during StaMPS processing so Hopefully I can use GACOS ztd maps for the tropospheric phase removal