Data & Methods

Every number on this site is computed from cached NASA observations. Trend significance uses the Mann-Kendall test; the rate of change uses the Theil-Sen estimator. No number is ever produced by a language model, and districts without cached data say so instead of showing estimates.

64 / 64 districts currently have cached time series.

Datasets

• NASA POWER (monthly, agroclimatology)

  NASA_POWER_MONTHLY_AG_V9 · Air temperature (T2M), all-sky solar radiation, corrected precipitation

  https://power.larc.nasa.gov/

• MODIS Terra Vegetation Indices 16-day 250 m

  MOD13Q1.061 · NDVI

  https://modis.ornl.gov/data/modis_webservice.html

• MODIS Terra Land Surface Temperature 8-day 1 km

  MOD11A2.061 · Daytime land surface temperature

  https://modis.ornl.gov/data/modis_webservice.html

• Bangladesh district boundaries (CC BY 3.0 IGO)

  geoBoundaries gbOpen BGD ADM2 · 64 district polygons

  https://www.geoboundaries.org/

Team

TerraBangla · NASA Space Apps Challenge 2026, Bangladesh · challenge “Be An Earth System Trend Detective!” · Apache-2.0 licensed.