The Ozone Mapping and Profiler Suite (OMPS) is aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite, which launched in October 2011. Near real-time (NRT) OMPS data products include total column ozone, total column sulfur dioxide (SO2), vertical ozone profile swath, and aerosol index. These NRT data products are available through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE) within three hours of satellite observation.
To download NRT OMPS data, register for an Earthdata Login. Use the table below to access specific LANCE data products.
Instructions for downloading data via https and on automating scripts can be found below.
OMPS / Suomi NPP
Directory path: https://omisips1.omisips.eosdis.nasa.gov/outgoing/OMPS/LANCE/<data type>/ where <data type> is the specific data type, e.g., NMTO3-L2-NRT, NMSO2-PCA-L2-NRT, etc.
OMPS / NOAA-20
| Product download | Description | Volume (GB/day) | Browse |
|---|---|---|---|
| NMSO2-PCA-L2-Step1-nc-NRT/ | OMPS-N20 NM PCA SO2 Step 1 Total Column 1-Orbit L2 Swath 17x13km NRT | 0.21 | Worldview Browse |
| NMUVAI-L2-UVAerosolIndex-NRT | OMPS-N20 L2 NM Aerosol Index swath orbital NRT | 1.82 | Worldview Browse |
OMPS / NOAA-21
| Product download | Description | Volume (GB/day) | Browse |
|---|---|---|---|
| LP-NRT-AER | OMPS-N21 LP NRT Aerosol Extinction Vertical Profile swath multi-wavelength orbital 3slit | 0.063 | Worldview Browse |
| LP-L2-O3-NRT | OMPS-N21 LP NRT L2 LP Ozone (O3) Vertical Profile swath daily Center slit V2.6 | 0.308 |
GeoTIFF Images
https://omisips1.omisips.eosdis.nasa.gov/outgoing/OMPS/geotiff/
Each file contains the imagery data stored as a float32 and can be imported into a GIS.
| File name | Description |
|---|---|
| NMMIEAIpcnb/ | Aerosol Pyrocumulonimbus |
| NMMIEAIuvai/ | Aerosol Index |
| NMSO2PCApbl/ | SO2 Planetary Boundary Layer (PBL) |
| NMSO2PCAstl/ | SO2 Upper Troposphere and Stratospheric Layer |
| NMSO2PCAtrl/ | SO2 Lower Troposphere Layer |
| NMSO2PCAtrm/ | SO2 Middle Troposphere Layer |
OMPS NRT Data and Information
- Download OMPS data directly from:
- GeoTIFFs (see above)
- Data provider: Ozone Science Investigator-led Processing System (Ozone SIPS)
- Feature article: OMPS Near Real-Time Data Available Through LANCE
- Subscribe/Unsubscribe to the LANCE Ozone email list. Leave subject and body blank
Instructions for downloading data via https protocol from OMISIPS1
Data access requires authentication via a URS login and/or a URS token.
Notice: URS Token expiration
Tokens generated before July 2021 will expire soon and should be regenerated using the procedures outlined below.
Obtaining an initial URS Token
Any user who does not already have a Bearer token from URS can get one by performing the following steps:
- In your browser, go here for instructions on retrieving the token from URS.
- Note that if you are not already logged into URS, you will be taken to the URS login page. The first time you login via URS, URS will prompt you to accept authorization of Sentinel3 and MERIS, you must accept to continue.
- Once you are logged in, or if you were already logged in, you will view your current tokens or generate a new one..
- The token will be shown on the URS page. Highlight and copy the token from the page and save in a file for use later.
Examples
The token from URS is how the SIPS identifies users. If the token is invalid, or missing the command will not work. The URS web site will give you the token to use in the examples below.
- To get a listing (to standard out) of the OMTO3 directory via wget use :
wget -nd --header='Authorization: Bearer MY_TOKEN' https://omisips1.omisips.eosdis.nasa.gov/outgoing/OMTO3 -O - - To download a single file, OMI-Aura_L2-OMTO3_2018m0529t0918-o73776_v883-2018m0529t120750.he5 for example, to the current directory:
wget -nd --header='Authorization: Bearer MY_TOKEN' https://omisips1.omisips.eosdis.nasa.gov/outgoing/OMTO3/OMI-Aura_L2-OMT… - To download all files in the OMTO3 directory to a given directory , FOO in this case and filters out any file ending in '.html':
wget -r -nd --header='Authorization: Bearer MY_TOKEN' -R ".html" https://omisips1.omisips.eosdis.nasa.gov/outgoing/OMTO3 -P FOO