How hot the land surface gets (Aqua, daily, 0.05 deg)

In plain English

What it measures. How hot the land surface gets and how efficiently it radiates heat, mapped daily across the whole globe at a 0.05-degree scale, with separate daytime and nighttime values plus quality and viewing details.

How it's made. Derived from the MODIS instrument on the Aqua satellite, built up from a finer-scale MODIS temperature product onto a global climate-modeling grid.

How & where you'd use it. Useful for tracking surface heat patterns, drought and water stress, urban heat, and seasonal and long-term climate change over land.

What's measured

LAND SURFACE › SURFACE RADIATIVE PROPERTIES › EMISSIVITYLAND SURFACE › SURFACE THERMAL PROPERTIES › LAND SURFACE TEMPERATURE

Coverage & cadence

Time span2002-07-04 → ongoing
Measured byAqua (MODIS)
Processing levelLevel 3
Spatial extent-180, -90, 180, 90
FormatsHDF-EOS2
StatusACTIVE

What you can do with it

Track deforestation, fire scars and land-cover change
Monitor crop and vegetation health (NDVI/EVI)
Map how built-up vs. green an area is over time

Official description

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity Daily (MYD11C1) Version 6.1 product provides daily 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). The MYD11C1 product is directly derived from the [MYD11B1](https://doi.org/10.5067/MODIS/MYD11B1.061) product. A CMG granule follows a Geographic grid, having 7,200 columns and 3,600 rows, which represent the entire globe. Each MYD11C1 product consists of the following layers for daytime and nighttime observations: LSTs, quality control assessments, observation times, view zenith angles, number of clear-sky observations, and emissivities from bands 20, 22, 23, 29, 31, and 32 (bands 31 and 32 are daytime only) along with the percentage of land in the grid. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61).

Get the data

myd11c1_access.py

import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="MYD11C1",
    version="061",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from LPCLOUD

Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.

Official links

Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
The technical information in the User's Guide enables users to interpret and use the data products. VIEW RELATED INFORMATION
The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. VIEW RELATED INFORMATION
The File Specification provides a description of the product file including Scientific Data Sets and their attributes. VIEW RELATED INFORMATION
Validation at stage 2 has been achieved for all MODIS Land Surface Temperature and Emissivity products. VIEW RELATED INFORMATION
Further details regarding MODIS land product validation for the MYD11 data products are available from the MODIS Land Team Validation site. VIEW RELATED INFORMATION
The LDOPE Land Product Quality Assessment website provides known issues, maneuvers, and product quality of the land products. VIEW RELATED INFORMATION