The icepyx is a great and convenient package to download the data. However, I met some mistake in downloading the ATL03 data. I chose a certain spatial extent and date range.
code:
bounding box
short_name = ‘ATL03’
spatial_extent = [129.034162,35.048268,129.121820,35.121367]
date_range = [‘2018-10-13’,‘2019-01-03’]
region_a = ipx.Query(short_name, spatial_extent,date_range)
But the download file (named “processed_ATL03_20181111052956_06660102_005_01”) has no photon height data in group gtx. The file size is also much smaller than download directly from the website (56.9MB vs 3.27GB). I wonder if I made some stupid mistake and forget to set some important parameters or this error was caused by other reasons.
The code environment is Anaconda(Spyder) Python 3.7.6 icepyx 0.6.3
any updates on this? it also happens to me
How big is your box? A box below a certain size threshold will return no data
Hello,did you find the answer to your problem? I download ATL03 from earthdata uing Custumize, the data also lost heights for some gt groups
I suspect that what is happening is that there is not actually any data available for the submitted region. As a result, when customization services are applied (and spatial and temporal subsetting are applied by default in icepyx), no data is returned. Searching for data uses metadata to identify granules that most likely have data in them based on a file-wide bounding box. If the area you’ve requested is small enough, it’s highly possible no photons fall within it, so no data is returned. As a starting point to isolate the issue, I’d suggest checking OpenAltimetry for your region of interest to see if there are actually any photons available.