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FAQ: What is LANCE?

Posted: Thu Feb 15, 2024 1:09 pm America/New_York
by Earthdata - wxedward
What is LANCE?

LANCE (Land, Atmosphere Near real-time Capability for EO) is a group of near real-time data systems serving the Land and Atmosphere science community.

What is near real-time (NRT) data?

Near real-time data are defined as data that are available to users three hours or less after a satellite observation.

What near real-time systems are a part of LANCE?

LANCE consists of "elements" that process the NRT data made available through LANCE. These are listed in the table below.
LANCE Element Processing Center Instrument
LANCE MODIS MODAPS (Goddard) MODIS
LANCE AMSR AMSR SIPS (GHRC) AMSR2
LANCE AIRS GES DISC (Goddard) AIRS
LANCE MLS MLS SIPS (Jet Propulsion Laboratory [JPL]) MLS
LANCE OMI Ozone SIPS (Goddard) OMI
LANCE MISR MISR SIPS (JPL) MISR
LANCE VIIRS - Atmosphere Suomi NPP Atmosphere SIPS (SSEC, University of Wisconsin-Madison) VIIRS
LANCE VIIRS - Land Suomi NPP Land SIPS (Goddard) VIIRS
LANCE OMPS Ozone SIPS (Goddard) OMPS
LANCE MOPITT MOPITT SIPS (NCAR) MOPITT
LANCE LIS (ISS) AMSR SIPS (GHRC) ISS


What are standard products?

Standard products are products that are used for standard science processing and are generally available between 8-40 hours after observation.

What is the difference between near real-time and standard products?

Near real-time and standard products differ in the amount of processing the raw data receives. Near real-time data is processed with different, less accurate ancillary data to make it available to users within 3 hours of observation. The main difference is in geolocation due to the use of predictive orbit information vs waiting for definitive orbit information.

Where can I obtain standard products?

Each LANCE element provides standard products as well as near real-time products. Go to the Standard Products page for the data centers where the standard products are archived.

What LANCE data products are available?

Currently the following near real-time products are available under LANCE:
  • Atmospheric Infrared Sounder (AIRS),
  • Advanced Microwave Scanning Radiometer 2 (AMSR2),
  • Lightning Imaging Sensor (LIS) on the International Space Station - LIS (ISS),
  • Multi-Angle Imaging Spectroradiometer (MISR),
  • Microwave Limb Sounder (MLS),
  • Moderate Resolution Imaging Spectroradiometer (MODIS),
  • Measurement of Pollution in the Troposphere (MOPITT),
  • Ozone Monitoring Instrument (OMI),
  • Ozone Mapping Profiler Suite (OMPS), and
  • Visible Infrared Imaging Radiometer Suite (VIIRS-Land)
  • Visible Infrared Imaging Radiometer Suite (VIIRS-Atmosphere).
Where do I go online to search and order LANCE data?

Go to the Near Real-Time Data page for more information or use search.earthata.nasa.gov

Who can order LANCE data products?

All NASA Earth Observing System (EOS) mission data including LANCE data is freely available to the public.

How long are LANCE near real-time data sets are available?

The near real-time data sets stay for about 7 days from the time they are generated.

How soon are LANCE near real-time data sets available?

The near real-time data that LANCE provides is available to users within 3 hours of observation.

Do I need to register to access LANCE data?

Yes, registration is required to obtain LANCE data. Please visit the Earthdata Login to register for a username and password.

Will there be a fee associated with accessing data?

Typically, there is no cost associated with accessing NASA Earth Science data. However, please refer to the Earth Science Data Systems (ESDS) Data and Information Policy for more information.