Search found 29 matches

by LP DAAC - afriesz
Wed Aug 31, 2022 8:55 am America/New_York
Forum: Questions/Comments
Question: Query about GEDI time quantum
Replies: 3

Re: Query about GEDI time quantum

deace , It is not clear to me what you’re asking for exactly. GEDI continuously collects lidar samples globally from the International Space Station. If you’re trying to find and access data that spatially and temporally intersect with you research parameters, I would recommend using Earthdata Sear...
by LP DAAC - afriesz
Wed Aug 17, 2022 8:43 pm America/New_York
Forum: Questions/Comments
Question: Unable to download data from the 30-Meter SRTM Tile Downloader
Replies: 11

Re: Unable to download data from the 30-Meter SRTM Tile Downloader

@edwardsch ,

Have you tried from another browser? Even after clearing my cache in Chrome is still get an error, but when I try from Firefox I'm able to download the tile.
by LP DAAC - afriesz
Wed Aug 17, 2022 4:18 pm America/New_York
Forum: Questions/Comments
Question: MODIS data exposed through CMR STAC API
Replies: 1

Re: MODIS data exposed through CMR STAC API

valpesendorfer , The LP DAAC currently has two provider endpoints within the CMR STAC API. One for "LPDAAC_ECS" ( https://cmr.earthdata.nasa.gov/stac/LPDAAC_ECS/ ) and one for "LPCLOUD" ( https://cmr.earthdata.nasa.gov/stac/LPCLOUD/ ). The LPDAAC_ECS endpoint will contain metada...
by LP DAAC - afriesz
Wed Aug 17, 2022 4:04 pm America/New_York
Forum: Questions/Comments
Question: How to calculate NDVI from MODIS MOD09GQ?
Replies: 2

Re: How to calculate NDVI from MODIS MOD09GQ?

@5479584.asdf, I was able to replicate what you are seeing in QGIS. I don’t see a problem other than you should be quality filtering these data before you calculate the NDVI. The MODIS granule you downloaded will have a “QC_250m_1” layer in it that you should use to quality filter your data. The QA ...
by LP DAAC - afriesz
Tue Aug 16, 2022 1:25 pm America/New_York
Forum: Questions/Comments
Question: Reprojection
Replies: 4

Re: Reprojection

rkshah , From what I can tell, what you are seeing is what is expected. The rows and columns of the grid will change, as well as the pixel count, when you transform from the Sinusoidal grid to your UTM projection. Any tool or utility that reprojects will exhibit this. Is there anything else that le...
by LP DAAC - afriesz
Tue Aug 16, 2022 12:03 pm America/New_York
Forum: Questions/Comments
Question: Reprojection
Replies: 4

Re: Reprojection

rkshah , "But while counting the pixel, both gives different results." If you are seeing a different number for rows and columns or total pixels after reprojecting from sinusoidal, that is to be expected. If you are seeing data values that we not in the source file, that suggests that nea...
by LP DAAC - afriesz
Thu Jul 21, 2022 3:52 pm America/New_York
Forum: Questions/Comments
Question: Verify that your username and password are correct in .netrc
Replies: 13

Re: Verify that your username and password are correct in .netrc

@ouaretwa ,

It looks like your .netrc file might be in the wrong directory. Could you move your .netrc file to your user profile directory (e.g., C:\Users\ouaretw\.netrc)? Let us know if that works.
by LP DAAC - afriesz
Tue Jun 21, 2022 3:02 pm America/New_York
Forum: Questions/Comments
Question: Unsuccessful attempts to download global vegetation data mod13a3v061 using Cloud API
Replies: 2

Re: Unsuccessful attempts to download global vegetation data mod13a3v061 using Cloud API

sclare , Thank you for reaching out, and we apologize for the inconvenience. The behavior you described appears to be a bug, and it looks like it has existed since before our cloud deployment. We’ve recorded the problem and will be looking into a solution. In the meantime, you can break up your sin...
by LP DAAC - afriesz
Mon Jun 20, 2022 2:21 pm America/New_York
Forum: Questions/Comments
Question: Data Download LP DAAC Data Pool via Java
Replies: 4

Re: Data Download LP DAAC Data Pool via Java

ryust , We've taken a look at the Java code you linked to on the Earthdata Login wiki page (https://wiki.earthdata.nasa.gov/display/EL/How+To+Access+Data+With+Java). We were not able to replicate your error message. In fact, we were not able to download a valid .zip file using the Java code provide...
by LP DAAC - afriesz
Mon Apr 04, 2022 10:11 am America/New_York
Forum: Questions/Comments
Question: Downloading GEDI data from e4ftl01.cr.usgs.gov results in 302 redirects
Replies: 1

Re: Downloading GEDI data from e4ftl01.cr.usgs.gov results in 302 redirects

cgrotz , I'm still looking into why the 'curl' option is not working. In the meantime, would you be willing to try 'wget' ( https://www.gnu.org/software/wget/ ) instead? I've been able to successfully download your link and the .h5 data link with wget. An example wget call is below: wget https://e4...