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Description

The MYD11C2 Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MYD11C2 Version 6.1 data product.

The MYD11C2 Version 6 product provides Land Surface Temperature and Emissivity (LST&E) values in a 0.05 degree (5,600 meters at the equator) latitude/longitude Climate Modeling Grid (CMG). A CMG granule follows a geographic grid with 7,200 columns and 3,600 rows, representing the entire globe. The LST&E values in the MYD11C2 product are derived by compositing and averaging the values from the corresponding eight MYD11C1 daily files. The MYD11C2 granule consists of 17 layers. Each MYD11C2 product consists of the following layers for daytime and nighttime observations: LSTs, quality control assessments, observation times, view zenith angles, and number of clear-sky observations along with percentage of land in the grid and emissivities from bands 20, 22, 23, 29, 31, and 32.

Known Issues

Improvements/Changes from Previous Versions

  • Removed cloud-contaminated LSTs from Level 2 and Level 3 LST products.
  • Updated the coefficient look-up table (LUT) for the split-window algorithm with comprehensive regression analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) simulation data in bands 31 and 32 over wide ranges of surface and atmospheric conditions, especially extending the upper boundary for (LST – Ts-air) in arid and semi-arid regions. Increased the overlap between various sub-ranges to reduce the sensitivity of the algorithm to uncertainties in the input data (i.e., column water vapor and air surface temperature from MYD07).
  • Made minor adjustments in the classification-based surface emissivity values, especially for bare soil and rocks land cover types.
  • Tuned the day/night algorithm by adjusting weights to improve performance in desert regions where the incorporated split-window algorithm may not work well.
  • Generated new gridded LST&E products with a 6 km spatial resolution for 8-day (MYD11B2) and monthly (MYD11B3) intervals in response to user community requests.

Product Summary

Platforms
Aqua
Instruments
MODIS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
5600 Meters x 5600 Meters
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2002-07-04 to 2023-02-25
Temporal Resolution
8 Day
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC) ,
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)
Concept ID
C2763370215-LPCLOUD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Updated
Science Keywords
Emissivity ,
Land Surface Temperature

Citation

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.

Copy Citation

Wan, Z., Hook, S., & Hulley, G. (2015). MYD11C2 MODIS/Aqua Land Surface Temperature/Emissivity 8-Day L3 Global 0.05Deg CMG V006 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD11C2.006 Date Accessed: 2025-12-14

File Naming Convention

MYD11C2.A2002273.006.2015161123824.hdf

The file name begins with the Product Short Name (MYD11C2) followed by the Julian Date of Acquisition formatted as AYYYYDDD (.A2002273), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2015161123824), and the Data Format (hdf).

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Publications Citing This Dataset

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
Clear_sky_days Days in clear sky condition Bit Field uint8 0 0 to 255 N/A
Clear_sky_nights Nights in clear sky condition Bit Field uint8 0 0 to 255 N/A
Day_view_angl View zenith angle of day observation Degree uint8 255 0 to 130 N/A
Day_view_time Local time of day observation Hours uint8 255 0 to 120 0.2
Emis_20 Band 20 emissivity N/A uint8 0 1 to 255 0.002
Emis_22 Band 22 emissivity N/A uint8 0 1 to 255 0.002
Emis_23 Band 23 emissivity N/A uint8 0 1 to 255 0.002
Emis_29 Band 29 emissivity N/A uint8 0 1 to 255 0.002
Emis_31 Band 31 emissivity N/A uint8 0 1 to 255 0.002
Emis_32 Band 32 emissivity N/A uint8 0 1 to 255 0.002
LST_Day_CMG Day Land Surface Temperature Kelvin uint16 0 7500 to 65535 0.02
LST_Night_CMG Night Land Surface Temperature Kelvin uint16 0 7500 to 65535 0.02
Night_view_angl View zenith angle of night observation Degree uint8 255 0 to 130 N/A
Night_view_time Local time of night observation Hours uint8 255 0 to 120 0.2
Percent_land_in_grid Percentage of land in the grid Percent uint8 0 1 to 100 N/A
QC_Day Daytime LST Quality Indicators Bit Field uint8 N/A 0 to 255 N/A
QC_Night Nighttime LST Quality indicators Bit Field uint8 N/A 0 to 255 N/A
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