SST

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sigridurvala
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Re: SST

by sigridurvala » Wed Apr 17, 2024 11:39 am America/New_York

Unfortunately I am looking for data with as small resolution as possible, 1 km is the smallest I have found. I am looking at the changes in sea surface temperature in a very small area.

All I need is a dataset with longitude, latitude, time, and the sea surface temperature, so I can make plots and calculate the mean temperature every month of the year in a specific pixel.

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PODAAC - wenhaoli
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Re: SST

by PODAAC - wenhaoli » Thu Apr 18, 2024 4:44 pm America/New_York

The VIIRS L2P SST products have 750 m x 750 m spatial resolution. Please see the VIIRS L2P SST product available at PO.DAAC by following this link: https://podaac.jpl.nasa.gov/cloud-datasets?search=viirs%20sst&view=list&ids=Processing%20Levels&values=2%20-%20Geophys.%20Variables,%20Sensor%20Coordinates.

sigridurvala
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Re: SST

by sigridurvala » Fri Apr 19, 2024 6:36 am America/New_York

Thank you for the suggestion, however, I need data that goes back to the early 2000s. Starting somewhere between the years 1999 and 2005.

GES DISC - jimacker
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Re: SST

by GES DISC - jimacker » Fri Apr 19, 2024 12:10 pm America/New_York

MODIS-Terra SST data products begin in 1999, and are at 1km resolution at nadir in the Level 2 swath format.

sonnet
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Re: SST

by sonnet » Mon Apr 22, 2024 1:14 am America/New_York

GES DISC - jimacker wrote:
> Note, Level 4 data refers to data that is a model output of some kind. You
> would have to specify what dataset you were visualizing to provide a better
> answer.
It is vital to mention the dataset when discussing Level 4 data because it affects model outcomes. Clarity ensures that visualizations are accurately interpreted and yield valuable insights.

sigridurvala
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Re: SST

by sigridurvala » Fri May 03, 2024 11:07 am America/New_York

I am now using this data: GHRSST Level 2P Global Sea Surface Skin Temperature from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Aqua satellite (GDS2)
(MODIS_A-JPL-L2P-v2019.0).

However, the temperatures I see are freezing temperatures so I was wondering if this is the cloud cover temperature or just errors in the data?

PODAAC - edward.m.armstrong
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Re: SST

by PODAAC - edward.m.armstrong » Thu May 09, 2024 2:00 pm America/New_York

Hello,

Make sure you are flagging the MODIS sea_surface_temperature variable with flag >=4 from the quality_level variable to only view valid SSTs. This flagging step will remove contaminated pixels.

regards,

Ed Armstrong

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