Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.Suomi NPP data announcement
Description
The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity Daily (MYD11A1) Version 6.1 product provides daily per-pixel Land Surface Temperature and Emissivity (LST&E) with 1 kilometer (km) spatial resolution in a 1,200 by 1,200 km grid. The pixel temperature value is derived from the MYD11_L2 swath product. Above 30 degrees latitude, some pixels may have multiple observations where the criteria for clear-sky are met. When this occurs, the pixel value is a result of the average of all qualifying observations. Provided along with the daytime and nighttime surface temperature bands are associated quality control assessments, observation times, view zenith angles, and clear-sky coverages along with bands 31 and 32 emissivities from land cover types.
The following changes and improvements were implemented for inputs to MODIS Version 6.1 land surface temperature and emissivity data products: (1) Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 – 2017, and (2) A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).
Land Processes Distributed Active Archive Center (LP DAAC)
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MODIS Adaptive Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/MODAPS)
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Wan, Z., Hook, S., & Hulley, G. (2021). MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V061 [Dataset]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD11A1.061 Date Accessed: 2026-08-23
@misc{wan_hook_hulley_2021,
title={MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V061},
url={https://www.earthdata.nasa.gov/data/catalog/lpcloud-myd11a1-061},
DOI={10.5067/MODIS/MYD11A1.061},
publisher={NASA Land Processes Distributed Active Archive Center},
author={Wan, Zhengming and Hook, Simon and Hulley, Glynn},
year={2021},
}
Wan, Z., Hook, S., & Hulley, G. (2021). MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V061 [Dataset]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD11A1.061 Date Accessed: 2026-08-23
Wan, Zhengming, et al. “MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V061.” NASA Land Processes Distributed Active Archive Center, 2021, https://doi.org/10.5067/MODIS/MYD11A1.061. Date Accessed: 2026-08-23
File Naming Convention
MYD11A1.A2025222.h09v09.061.2025223192913.hdf
The file name begins with the Product Short Name (MYD11A1) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2025222), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h09v09), the Version of the data collection (061), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2025223192913), and the Data Format (hdf).
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