Search found 293 matches

by GES DISC - jimacker
Fri May 12, 2023 5:08 pm America/New_York
Forum: Questions/Comments
Question: Questions about ArcGis Tools for MODIS AOD and processing in ArcGIS
Replies: 3

Re: Questions about ArcGis Tools for MODIS AOD and processing in ArcGIS

Hello, Our GIS team at the GES DISC provided the following guidance for your question. As you indicated, using the functionality in ArcGIS Pro to Add Data, and "Add Multidimensional Raster Layer", and selecting the variables of interest (AOD and AOD_QA), will create one layer per variable....
by GES DISC - jimacker
Wed May 03, 2023 10:57 pm America/New_York
Forum: Questions/Comments
Question: Predicting forest fires for a project
Replies: 4

Re: Predicting forest fires for a project

Here are some suggestions for you. You may wish to examine the methodology used here: https://data.giss.nasa.gov/impacts/gfwed/ Here are some dataset suggestions. https://www.globalfiredata.org/fireatlas.html https://modis.gsfc.nasa.gov/data/dataprod/mod14.php This search result provides many of the...
by GES DISC - jimacker
Mon May 01, 2023 3:50 pm America/New_York
Forum: Questions/Comments
Question: MOD10A1 striping/stripes in early 2000s
Replies: 2

Re: MOD10A1 striping/stripes in early 2000s

The GES DISC does not serve this data. I am adding LAADS.
by GES DISC - jimacker
Fri Apr 28, 2023 2:53 pm America/New_York
Forum: Questions/Comments
Question: How to get sea salt aerosol fraction from MODIS AOD data
Replies: 3

Re: How to get sea salt aerosol fraction from MODIS AOD data

Hello. I am not sure about MODIS AOD, but the Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) has several sea salt variables that may be useful. I am providing the search link in Giovanni, but the datasets and variables can also be acquired directly from the GES D...
by GES DISC - jimacker
Thu Apr 20, 2023 2:02 pm America/New_York
Forum: Questions/Comments
Question: Photosynthetically Active Radiation Data
Replies: 5

Re: Photosynthetically Active Radiation Data

MERRA-2 PAR products are in our Giovanni system, and that provides an opportunity to make a quick analysis for a particular region such as Door County. For Door County in particular, you would have to make a bounding box, or you could do the state of Wisconsin and just look at the values visually. I...
by GES DISC - jimacker
Thu Feb 23, 2023 3:13 pm America/New_York
Forum: Questions/Comments
Question: data related to atmosphere at different altitudes
Replies: 1

Re: data related to atmosphere at different altitudes

Dear Saivun Reddy, This message was just recently viewed as you posted it at a time which included a holiday in the United States. We have data from the Atmospheric Infrared Sounder (AIRS) that includes most of the parameters you requested. The data are available at pressure levels in hPA. You can i...
by GES DISC - jimacker
Tue Feb 14, 2023 2:41 pm America/New_York
Forum: Questions/Comments
Question: aerosol data
Replies: 5

Re: aerosol data

I will check with my colleagues. To begin, I recommend this ARSET training set of videos (from a class), particularly part 3.

https://www.youtube.com/playlist?list=PLiuUQ9asub3TPlA3RZuMJ_mHLuy6W5tGe
by GES DISC - jimacker
Thu Feb 09, 2023 4:23 pm America/New_York
Forum: Questions/Comments
Question: aerosol data
Replies: 5

Re: aerosol data

Hello, Here is more information in response to your question. "I would like to suggest extracting PM2.5 from the daily AOD, and then calculate the monthly mean PM2.5. As such, the monthly PM2.5 value is more precise. When you convert AOD to PM2.5, you might need to consider the factors such as ...
by GES DISC - jimacker
Thu Feb 09, 2023 10:52 am America/New_York
Forum: Questions/Comments
Question: Looking for data set AIRS AIRICRAD with gap filled at 6 microns
Replies: 2

Re: Looking for data set AIRS AIRICRAD with gap filled at 6 microns

This suggestion is from one of our staff members familiar with AIRS data.

The SNDR12CHRP1 version 2 data collection may work. https://doi.org/10.5067/WIG2N5C20MRJ

This data collection "fills" in missing channels, though I don't know if it would fill in that much of a gap.