Land Surface Temperature and Emissivity data is provided in a 0.05-degree global Climate Modeling Grid. The dataset contains 17 layers per composite, including daytime and nighttime LST, quality assessments, and emissivity from six spectral bands. It is produced by NASA's LPCLOUD from Terra MODIS sensor observations.
Use Cases
- Model global surface urban heat island effects by analyzing daytime and nighttime LST layers.
- Assess land cover change impacts on surface energy using emissivity values from bands 20, 22, 23, 29, 31, and 32.
- Validate climate model outputs by comparing with the 8-day averaged LST values on the 7,200x3,600 global grid.
- Study diurnal temperature cycles by integrating the separate daytime and nighttime observation layers.
Strengths
- Global coverage on a consistent 0.05-degree (approx. 5.6 km) grid with 7,200 columns and 3,600 rows.
- Provides 17 data layers per composite, including LST, quality control, view zenith angles, and clear-sky observation counts.
- Data is derived from compositing and averaging eight daily MOD11C1 files, reducing noise from single observations.
Limitations
- Known data quality issues exist, requiring users to consult the MODIS/VIIRS Land Quality Assessment website.
- The 8-day composite temporal resolution may miss short-term, sub-weekly land surface temperature dynamics.
Provenance
- Source
- NASA LPCLOUD, Terra MODIS sensor.
- Collection Method
- Derived by compositing and averaging eight daily MOD11C1 files.
- Time Range
- null
- Freshness
- null
- Geography
- Global.