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Found 10 records similar to Dry Spell

Federal

Heat Wave represents the consecutive number of days (April 1 – October 31) where the maximum daily temperature is greater than 25 or 30 degrees respectively. Heat wave products are only generated during the Growing Season, April 1 through October 31.

Last Updated: May 4, 2022
Date Published: Jan. 14, 2019
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  agclimate, HW, Farmlands, Agriculture, Crops, Precipitation, Temperature
Federal

The term "Palmer Drought Index" has been used collectively to represent multiple indices. This index is simply a water balance model which analyzes precipitation and temperature, and used as a tool to measure meteorological and hydrological drought across space and time. All versions of the index uses the Versatile Soil Moisture Budget to model the movement of water within the system, and a daily Priestly-Taylor model to estimate evapotranspiration. The Palmer Drought Index (PDI) uses monthly temperature and precipitation data to calculate a simple soil water balance.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  PDI, agclimate, PMDI, Agriculture, Crops, Farmlands, Temperature, Precipitation
Federal

Precipitation Percentiles represents the accumulated precipitation (mm) for the time period compared to historical information for the same time period. This comparison ranks the current precipitation amount and assigns it a percentile value based on a historic record.

Products are produced for the following timeframes: Agricultural Year, Growing Season and Winter Season as well as rolling products for 30, 60, 90 and 180 days

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML GeoTIF ESRI REST
Keywords:  PE, agclimate, Agriculture, Crops, Farmlands, Precipitation, Temperature
Federal

The term "Palmer Drought Index" has been used collectively to represent multiple indices. This index is simply a water balance model which analyzes precipitation and temperature, and used as a tool to measure meteorological and hydrological drought across space and time. All versions of the index uses the Versatile Soil Moisture Budget to model the movement of water within the system, and a daily Priestly-Taylor model to estimate evapotranspiration. The Palmer Drought Index (PDI) uses monthly temperature and precipitation data to calculate a simple soil water balance.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  PDI, agclimate, PHDI, Farmlands, Agriculture, Crops, Temperature, Precipitation
Federal

Accumulated Precipitation represents the amount of total precipitation in mm (solid and/or liquid) which has been recorded over a given period of time.

Products are produced for the following timeframes: Agricultural Year, Growing Season, Winter Season, as well as rolling products for 7, 14, 30, 60, 90, 180, 270, 365, 730, 1095, 1460 and 1825 days.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML GeoTIF ESRI REST
Keywords:  AC, agclimate, Farmlands, Agriculture, Crops, Precipitation
Federal

Percent of Average Precipitation represents the accumulation of precipitation for a location, divided by the long term average value. The long term average value is defined as the average amount over the 1981 – 2010 period. Products are produced for the following timeframes: Agricultural Year, Growing Season, Winter Season, as well as rolling products for 30, 60, 90, 180, 270, 365, 730, 1095, 1460 and 1825 days.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  agclimate, AV, Farmlands, Temperature, Precipitation, Agriculture, Crops
Federal

The Standardized Precipitation Evapotranspiration Index (SPEI) is computed similarly to the SPI. The main difference is that SPI assesses precipitation variance, while SPEI also considers demand from evapotranspiration which is subtracted from any precipitation accumulation prior to assessment.

Unlike the SPI, the SPEI captures the main impact of increased temperatures on water demand.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  SPEI, agclimate, Agriculture, Crops, Farmlands, Temperature, Precipitation
Federal

Departure from Average Precipitation represents the accumulated precipitation value for a location, subtracted by the long term average value. The long term average value is defined as the average amount over the 1981 – 2010 period. A negative value indicates that the location has received less than the normal amount of precipitation (mm) for that timeframe. A positive value indicates that the location has received more than the normal amount of precipitation (mm).

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML GeoTIF ESRI REST
Keywords:  agclimate, DNP, Farmlands, Crops, Agriculture, Precipitation
Federal

Crop Heat Units (CHU) are calculated on a daily basis, using the maximum and minimum temperatures in order to account for a crop’s negative response to higher temperatures.

The formula used to calculate the CHU value for a day is:

(1.8 × (Minimum Temperature − 4.4) + 3.33 × (Maximum Temperature − 10) − 0.084 × (Maximum Temperature − 10)²) ÷ 2.0

CHU values are only accumulated during the Growing Season, April 1 through October 31.

Last Updated: May 4, 2022
Date Published: May 8, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML GeoTIF ESRI REST
Keywords:  agclimate, CH, Farmlands, Agriculture, Crops, Temperature, Precipitation
Federal

The Standardized Precipitation Index (SPI) has been recognized as the most accessible index for quantifying and reporting meteorological drought. On short timescales, the SPI is closely related to soil moisture, while at longer timescales, the SPI can be related to groundwater and reservoir storage. The model uses observed historical precipitation amounts to compute probability distributions which are then normalized using an incomplete gamma function over a range of timescales. The values can be interpreted as the number of standard deviations by which the observed anomaly deviates from the long-term mean.

Last Updated: May 4, 2022
Date Published: May 5, 2017
Organization: Agriculture and Agri-Food Canada
Formats: WMS PDF HTML ESRI REST GeoTIF
Keywords:  SPI, agclimate, Farmlands, Crops, Agriculture, Temperature, Precipitation
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