Agro-meteorological Monitoring INDices
Acronym | Indicator name | Definition | Units |
---|---|---|---|
TXa | Maximum temperature anomaly | Departure of maximum temperature from the LTA value | °C |
TNa | Minimum temperature anomaly | Departure of minimum temperature from the LTA value | °C |
TX90p | Warm days | Percentage of days when TX>90th percentile | % |
TN90p | Warm nights | Percentage of days when TN>90th percentile | % |
GDD0 | Growing degree days above 0 °C | Cumulative sum since the 1st of January of daily mean temperature exceedances of 0 °C | °C |
GDD0a | Growing degree days above 0 °C anomaly | Departure of growing degree days above 0 °C from the LTA value | °C |
GDD10 | Growing degree days above 10 °C | Cumulative sum since the 1st of January of daily mean temperature exceedances of 10 °C | °C |
GDD10a | Growing degree days above 10 °C anomaly | Departure of growing degree days above 10 °C from the LTA value | °C |
LFD0 | Late frost days | Count when TN (daily minimum) < 0°C during the early boreal spring | days |
LFD0a | Late frost days anomaly | Departure of late frost days from the LTA value | days |
HI | Huglin heliothermal index (viticulture specific) | Product of the accumulated daily mean and maximum temperatures with a 10 °C baseline and a latitude dependent coefficient | °C |
HIa | Huglin index anomaly | Departure of Huglin heliothermal index from the LTA value | °C |
RR | Precipitation | Total precipitation amount | mm |
RRa | Precipitation anomaly | Percentage departure of total precipitation from the LTA value | % |
RX1day | Max 1-day precipitation amount | Maximum 1-day precipitation (during the period of interest) | mm |
RX5day | Max 5-day precipitation amount | Maximum consecutive 5-day precipitation (during the period of interest) | mm |
ETo | Reference crop evapotranspiration | Evapotranspiration from a vegetated reference surface | mm |
EToa | Reference evapotranspiration anomaly | Percentage departure of reference crop evapotranspiration from the LTA value | % |
CWB | Climatic water balance | Difference between RR and ETo | mm |
CWBa | Climatic water balance anomaly | Departure of climatic water balance from the LTA value | mm |
SPEI3 | 3-month Standardized Precipitation Evapotranspiration Index | 3-month time scale drought index based on CWB climatic data | Dimensionless |
SPEI6 | 6-month Standardized Precipitation Evapotranspiration Index | 6-month time scale drought index based on CWB climatic data | Dimensionless |