dbekaert / train Goto Github PK

Hi David,

I think the MERIS data can not be download anymore using meris_download.ftp because the ftp is not available.

All the best,
Mohammad

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!

Hi David,

I think ftp should be modified in get_ecmwf script to 'ftp://ftp.ceda.ac.uk'
The data path followed this pattern /badc/ecmwf-era-interim/data/gg/ap/ggapYYYYMMDDHHMM.nc

all the best,
MMA

The second DOI appearing on the readme seems to be wrong: it currently says 10.1029/2014JB011558, but I cannot find anything with that DOI. The correct one appears to be 10.1002/2014JB011558. The same error is in the PDF manual, and maybe somewhere else.

ifgday_matfile = [pwd ‘ifgday.mat’] : Full file path to the mat file containing the
interferogram dates stored as a matrix with name ifgday and size [n_ifgs 2]. The master image is in the first and slave in the second column respectively. Specify dates a numeric value in YYYYMMDD format.

gacos_datapath = [] The full path to your GACOS processing folder.

UTC_sat = [‘HH:MM’] The UTC time of the satellite pass over your study area. It is specified as a string in a two digit hour and two digit minute format “HH:MM”. A colon needs to be included in between!

demfile = [pwd ‘dummy.dem’]
or = [pwd ‘dummy.grd’] The path to the DEM_file. Few options are included: 1) using a “.grd” file, 2) a DEM_file with corresponding DEM_file.rsc file, 3) a DEM file with DEM_file xml file (isce-like). For option 2 the DEM_file.rsc should contain the associated WIDTH, LENGTH, X_STEP (resolution), Y_STEP(-1*resolution), X_FIRST and Y_FIRST (upper left corner of the DEM), and optional the FORMAT. X and Y refer to longitude and latitude. You can use construct_dem.sh to make you DEM file.

ll_matfile = [pwd ‘ll.mat’] Full file path of the geo-coordinates, stored in
a matrix with size [n_points 2] and in its
columns the longitude and latitude.

Those parameters are from TRAIN manual. Those directories I still need how to find and/or create because I was only using Train’s default APS linear correction through aps_linear matlab command which calculates the tropospheric contribution that doesn’t require any manual downloading auxiliary data other than the exported products from snap’s automated pre-processing.