Datasets

The reference tables, published as they are. Each can be browsed as a table, filtered, mapped and downloaded as CSV, JSON or Parquet, with its source and licence.

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Time series

Daily solar radiation and weather for 34 localities, 1981-2025 (NASA POWER)

Satellite or reanalysis

Full-depth daily series for the 34 prefecture seats of Guinea and Kaloum: global, direct and diffuse irradiation, clearness index, albedo, temperature, humidity, wind at 2 m and 10 m, corrected precipitation.

Table Parquet 14.5 MB
Monthly solar radiation and weather for 34 localities, 1981-2025 (NASA POWER)

Satellite or reanalysis

Monthly means of the same parameters as the NASA POWER daily series, over the full depth available from the producer.

Table Parquet 711.9 KB
Daily radiation, temperature and wind, 2021-2025 (ERA5-Land)

Satellite or reanalysis

ERA5-Land reanalysis (Copernicus C3S) at about 9 km: downward surface solar radiation converted to kWh/m²/day, temperature at 2 m, wind at 10 m.

Table Parquet 1.3 MB
Monthly radiation, temperature and wind, 2001-2020 (ERA5-Land)

Satellite or reanalysis

Twenty years of ERA5-Land monthly means: downward solar radiation, temperature at 2 m, wind at 10 m, for the 34 localities.

Table Parquet 217.9 KB
Monthly direct normal irradiation, 2004-2023 (CAMS Radiation)

Satellite or reanalysis

CAMS Radiation service: surface radiation derived from Meteosat with the McClear clear-sky model. Mean monthly DNI in kWh/m²/day, from February 2004.

Table Parquet 91.3 KB
Daily PM10 and PM2.5 particulate matter, 2021-2025 (CAMS EAC4)

Satellite or reanalysis

CAMS EAC4 reanalysis: particulate matter below 10 µm and 2.5 µm, in µg/m³. Useful for module soiling and reading the dry season.

Table Parquet 988.6 KB
Monthly global horizontal irradiation, 2021-2023 (PVGIS SARAH-3)

Satellite or reanalysis

Monthly PVGIS GHI from the SARAH-3 database (CM SAF / EUMETSAT, Meteosat). The original monthly sum is converted to a daily mean to stay consistent with the other series.

Table Parquet 36.4 KB
Daily ground measurements of GHI and DNI in Kankan, 2021-2023 (ESMAP / WAPP)

Ground measurement

The only ground-measured source in the repository. ESMAP / WAPP campaign station co-located with Kankan: daily totals integrated from hourly measurements, 730 complete days from 18 October 2021 to 17 October 2023.

Table Parquet 13.6 KB
Monthly ground measurements of GHI and DNI in Kankan, 2021-2023 (ESMAP / WAPP)

Ground measurement

Mean of daily totals per calendar month. The “days measured” column flags partial months: October 2021 (14 days) and October 2023 (17 days).

Table Parquet 1.5 KB

Reference tables and territorial layers

Calibrated solar resource of the 340 sub-prefectures (GHI, DNI, P50, P90)

Satellite calibrated on ground data

For each sub-prefecture: annual and monthly GHI and DNI calibrated on ground measurements from reference stations, raw satellite GHI, inter-annual P50 and P90, calibration residuals and confidence level, diffuse fraction, humidex and daily variability.

Table Parquet 78.7 KB
Satellite-to-ground calibration coverage by sub-prefecture

Satellite calibrated on ground data

For each sub-prefecture: the climate anchor retained for GHI and DNI, climate distance to the anchor, expected calibration residuals (median and p80), donor stations and coverage status.

Table Parquet 12.6 KB
Raw annual irradiation of the 34 prefecture seats (GHI, DNI, DHI)

Satellite or reanalysis

Raw annual means (satellite, not calibrated) of GHI, DNI and DHI for the 34 seats of the repository, with the time window of each mean.

Table Parquet 2.7 KB
Reference list of the 34 localities (code, region, coordinates)

The prefecture seats of Guinea and Kaloum: code, name, administrative region, latitude, longitude and elevation. It is the join key of every locality dataset.

Table Parquet 2.1 KB