Scientific Data Attribution & Open Licensure
FieldShift is engineered on open-access Earth observations, global digital soil mapping, open-source cartography, and peer-reviewed agronomic research. We gratefully credit the scientific missions and data repositories powering this platform.
All satellite data (GPM, POWER, SMAP, Landsat) accessed without cost per NASA's free and open data sharing policy.
Soil physical & chemical estimations explicitly cited and credited under Creative Commons Attribution 4.0 International.
Rotation models and seasonal calendars grounded in Kerala Agricultural University (KAU) and ICAR published guidelines.
Complete Data Source & Software Registry
NASA GPM IMERG (Integrated Multi-satellitE Retrievals for GPM)
NASA Precipitation Processing System (PPS) / Goddard Space Flight Center
Platform Utilization: Provides daily precipitation estimates, 7-day cumulative rainfall series, heavy rainfall event detection (>40mm/day), and climate risk alerts across farm boundaries at 0.1° (~10 km) resolution.
NASA POWER (Prediction of Worldwide Energy Resources)
NASA Langley Research Center
Platform Utilization: Supplies daily agroclimatology telemetry: 2-meter air temperature (T2M max/min/mean), surface solar irradiance (ALLSKY_SFC_SW_DWN), and relative humidity (RH2M) for growing degree day modeling and 30-year climatological normal baselines.
NASA SMAP (Soil Moisture Active Passive) L4 Global Enhanced
NASA Jet Propulsion Laboratory (JPL) & GSFC
Platform Utilization: Provides coarse regional surface (0–5 cm) and root-zone (0–100 cm) soil moisture context (~9 km gridded product) to evaluate landscape-scale wetness and drought anomalies.
Landsat 8/9 OLI-2 & Sentinel-2 MSI (Copernicus)
NASA / USGS & European Space Agency (ESA Copernicus Program)
Platform Utilization: Multi-spectral surface reflectance utilized to calculate NDVI (Normalized Difference Vegetation Index) for canopy vigor and NDMI (Normalized Difference Moisture Index) for crop canopy hydration.
ISRIC SoilGrids 250m v2.0
ISRIC — World Soil Information (Wageningen, Netherlands)
Platform Utilization: Provides high-resolution (250m) machine-learned predictions of soil pH in water, soil organic carbon (SOC g/kg), sand/silt/clay fractions, bulk density, and cation exchange capacity (CEC) at 0–30 cm depth intervals as a baseline before physical farmer soil tests are registered.
OpenStreetMap (OSM) & CARTO Dark Matter
OpenStreetMap Contributors & CARTO
Platform Utilization: Provides basemap tiles, roads, waterbodies, and administrative boundaries for farm field delineation and regional cartography.
MapLibre GL JS & Terra Draw
MapLibre Organization & Open Source Contributors
Platform Utilization: Powers browser-based WebGL/WebGPU hardware-accelerated interactive polygon boundary drawing, field segmentation, contour visualization, and centroid calculation.
Kerala Agricultural University (KAU) — Package of Practices (POP)
Kerala Agricultural University, Vellanikkara, Thrissur
Platform Utilization: Provides authoritative crop calendars, monsoon planting windows (Virippu, Mundakan, Puncha), crop water requirements, companion planting guidelines, and pest interruption sequences tailored to Kerala's agro-ecological zones.
ICAR (Indian Council of Agricultural Research) & FAO EcoCrop
ICAR-CTCRI / ICAR-IISR & Food and Agriculture Organization (FAO)
Platform Utilization: Crop temperature ranges, soil pH tolerances, root depth profiles, and biological nitrogen fixation coefficients (+40 to +50 kg N/ha for Vigna unguiculata cowpea / green gram) used by the suitability evaluation engine.