Every field, seen from orbit.

Reference agronomic indices from open data, no sensors to buy

Agriculture Atlas is building virtual sensors for every H3 grid cell from open satellite and weather data: reference indices on soil water, heat, salinity and crop stress to inform your own field decisions.

Open assistant See how it works

Reference indices only. Not weather forecasts or official warnings.

Virtual sensors instead of field hardware

Field sensors are costly to buy and maintain. Agriculture Atlas is designed to derive reference agronomic indices from open Earth-observation data instead.

Map every field to an H3 grid cell

Farmland is placed on the open H3 hexagonal grid (resolutions 7 and 8), combining agricultural land-use and surface-water layers.

Fuse open satellite and weather data

Planned inputs for each cell: Sentinel-1/2, NASA SMAP, MODIS land surface temperature and Google WeatherNext/GraphCast model data.

From agronomic formulas to readable indices

Established methods such as FAO-56 Penman-Monteith yield 7 reference indices on a simple three-colour scale. They support, not replace, local experience and extension guidance, and are not forecasts or warnings.

7 reference agronomic indices

Each H3 grid cell is designed to carry the same set of indices, read through virtual sensors. Pick an index to switch the layer (illustrative colours).

Root-zone soil moisture

Low High

Illustrative landscape, generated by code. Not real data.

4 pilot agro-ecological regions

Phase 1 covers Vietnam, including the Hoàng Sa and Trường Sa archipelagos, with focus on four key farming regions.

Red River Delta & Northern Mountains

Rice, winter vegetables and tea; frost index and growing degree days.
Central Coast

Short-season rice, dragon fruit and coastal aquaculture; heat-stress and ET0 reference indices.
Central Highlands

Coffee, durian, pepper and tea; ET0 as a dry-season reference.
Mekong Delta

Rice, fruit orchards and aquaculture; key indices: salinity and leaf wetness.

Built on open data

Planned sources. Each is used under its own licence and attribution terms; some, such as GraphCast model weights, are non-commercial. Naming a source does not imply its endorsement.

Sentinel-1 SARESA Copernicus
Sentinel-2ESA Copernicus
NASA SMAPNASA
MODIS LSTNASA
WeatherNext / GraphCastGoogle DeepMind

Explore the preview or partner with us

Research institutes, cooperatives and NGOs are welcome to help shape the Vietnam pilot, including field validation of the indices.

Open assistant Partner with us

Two ways to use Agriculture Atlas

Sample data Web atlas & assistant Explore the H3 grid and the 7 reference indices. The preview runs on sample inputs; answers are general reference information, not professional advice. agricultureatlas.org/en/chat

In development Voice-first farmer app One big button, a three-colour scale and voice, with a compact offline field packet (design target: under 5 KB).