158 datasets found

Keywords: Africa

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  • The MedAfriCarbon radiocarbon database and web application. Archaeological dy...

    MedAfriCarbon radiocarbon database and web app are outcomes of the MedAfrica Project —Archaeological deep history and dynamics of Mediterranean Africa, ca. 9600-700 BC. The...
  • The genetics of East African populations: a Nilo-Saharan component in the Afr...

    Includes Supplementary Figures S1-S13, Supplementary Tables S1-S8 and Supplementary Methods. Suppl. Fig. S1: Principal component analysis of the new populations genotyped from...
  • Crop Indicators: Sorghum_S

    Crop water need: Let ET0i be the daily potential evapotranspiration [mm] for day i, and Kc(pl,ph) the crop factor per plant pl and phase ph, and s(pl,ph) and e(pl,ph) the...
  • Extremely Wet Days (r99p)

    cdo -yearpctl,99 RR.nc -yearmin RR.nc -yearmax RR.nc out.nc Annual threshold for extreme heavy precipitation: Let RRt be the daily precipitation amount on day t. For r99p list...
  • Remote Sensing Indicators: Forest Cover

    Predicted monthly forest cover dataset in a spatial resolution of 1 x 1 km based on MODIS and AVHRR datasets. For predicting the retrospective forest cover values the STARFM...
  • Highest 1-day Precipitation (rx1day)

    cdo -yearmax RR.nc out.nc Highest single day precipitation: Let RRt be the daily precipitation amount on day t. For rx1day search the maximum value of RRt in one year. Climate...
  • Climate Indicators: Total Precipitation in Rainy Season (rtotrs)

    cdo -yearsum -ifthen -gec,1 RRmask.nc RRmask.nc out.nc Annual precipitation sum in rainy season: Let RRt be the daily precipitation amount on day t. For Rtotrs sum up RRt for...
  • Crop Indicators: Soybean_L

    Crop water need: Let ET0i be the daily potential evapotranspiration [mm] for day i, and Kc(pl,ph) the crop factor per plant pl and phase ph, and s(pl,ph) and e(pl,ph) the...
  • Water Availability (wa)

    Water balance: Let ETi be the daily actual evapotranspiration [mm] (calculated by the daily surface latent heat flux) then WA is the daily average of the difference of the daily...
  • Crop Indicators: Maize_grain_L

    Crop water need: Let ET0i be the daily potential evapotranspiration [mm] for day i, and Kc(pl,ph) the crop factor per plant pl and phase ph, and s(pl,ph) and e(pl,ph) the...
  • Climate Indicators: Highest 1-day Precipitation (rx1day)

    cdo -yearmax RR.nc out.nc Highest single day precipitation: Let RRt be the daily precipitation amount on day t. For Rx1day search the maximum value of RRt in one year. Climate...
  • Rainy Season Characterisitics (rs)

    Rainy season: The onset is set as the cumulative minimum of daily precipitation anomalies over a year, the cessation is defined by the cumulative maximum. If a grid point is...
  • Climate Indicators: Heat Wave Duration Index (hwdi)

    cdo -eca_hwdi TX.nc -ydrunmean,5 TXref.nc out.nc Duration of Heat Wave: Let TXt be the daily maximum temperature on day t and TX’t be the climatological average of a running 5...
  • Climate Indicators: Extremely Wet Days (r99p)

    cdo -yearpctl,99 RR.nc -yearmin RR.nc -yearmax RR.nc out.nc Annual threshold for extreme heavy precipitation: Let RRt be the daily precipitation amount on day t. For R99p list...
  • Rainy Days in Rainy Season (rdrs)

    cdo -yearsum -gec,1 RRmask.nc out.nc Number of rainy days in rainy season: Let RRt be the daily precipitation amount on day t. For rdrs count all days in one year where RRt ≥...
  • Crop Water Need (cwn)

    Crop water need: Let ET0i be the daily potential evapotranspiration [mm] for day i, and Kc(pl,ph) the crop factor per plant pl and phase ph, and s(pl,ph) and e(pl,ph) the...
  • Standardized Precipitation Evapotranspiration Index (spei)

    A drought measure specified using precipitation and evaporation. Standardized Precipitation Evapotranspiration Index: A precipitation and evapotranspiration(Hargreaves) anomaly...
  • Crop Indicators: Maize_sweet_L

    Crop water need: Let ET0i be the daily potential evapotranspiration [mm] for day i, and Kc(pl,ph) the crop factor per plant pl and phase ph, and s(pl,ph) and e(pl,ph) the...
  • Climate Indicators: Warm Nights Percent (tn90p)

    cdo -eca_tn90p -ydrunpctl,90,5 TNref.nc -ydrunmin,5 TNref.nc -ydrunmax,5 TNref.nc out.nc Percentage of warm nights: Let TNt be the daily minimum temperature on day t and let...
  • Heat Wave Duration Index (hwdi)

    cdo -eca_hwdi TX.nc -ydrunmean,5 TXref.nc out.nc Duration of Heat Wave: Let TXt be the daily maximum temperature on day t and TX’t be the climatological average of a running 5...
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