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Hydrometric Monitoring Stations
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A station is a site on a river or lake where water quantity (water level and flow) are collected and recorded.
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Daily Mean of Water Level or Flow
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The daily mean is the average of all unit values for a given day.
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Monthly Mean of Water Level or Flow
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The monthly mean is the average of daily mean values for a given month.
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Annual Maximum and Minimum Daily Water Level or Flow
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The annual maximum and minimum daily data are the maximum and minimum daily mean values for a given year.
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Annual Maximum and Minimum Instantaneous Water Level or Flow
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The annual maximum and minimum instantaneous data are the maximum and minimum instantaneous values for a given year.
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Real-time hydrometric data
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Real-time water level and flow (discharge) data collected at over 2100 hydrometric stations across Canada (last 30 days).
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1981-2010 Climate Normals
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Climate Normals are used to summarize or describe the average climatic conditions of a particular location. At the completion of each decade, Environment and Climate Change Canada updates its climate normals for as many locations and as many climatic...
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Climate Stations
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Climate observations are derived from two sources of data. The first are Daily Climate Stations producing one or two observations per day of temperature, precipitation. The second are hourly stations that typically produce more weather elements e.g....
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Monthly Climate Observation Summaries
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A cross-country summary of the averages and extremes for the month, including precipitation totals, max-min temperatures, and degree days. This data is available from stations that produce daily data.
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Daily Climate Observations
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Daily climate observations are derived from two sources of data. The first are Daily Climate Stations producing one or two observations per day of temperature, precipitation. The second are hourly stations that typically produce more weather elements...
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Hourly Climate Observations
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Hourly climate observations are derived from the data source HLY01. These are stations that produce hourly meteorological observations, taken each hour of the day for the hours 00h-23h, for both daily (temperature, precipitation) and non-daily...
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Adjusted and Homogenized Canadian Climate Data (AHCCD) Stations
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Climate station datasets that incorporate adjustments (derived from statistical procedures) to the original historical station data to account for discontinuities from non-climatic factors, such as instrument changes or station relocation.
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Adjusted and Homogenized Canadian Climate Data (AHCCD) Annual
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Adjusted and Homogenized Canadian Climate Data (AHCCD) are climate station datasets that incorporate adjustments (derived from statistical procedures) to the original historical station data to account for discontinuities from non-climatic factors,...
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Adjusted and Homogenized Canadian Climate Data (AHCCD) Seasonal
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Adjusted and Homogenized Canadian Climate Data (AHCCD) are climate station datasets that incorporate adjustments (derived from statistical procedures) to the original historical station data to account for discontinuities from non-climatic factors,...
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Adjusted and Homogenized Canadian Climate Data (AHCCD) Monthly
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Adjusted and Homogenized Canadian Climate Data (AHCCD) are climate station datasets that incorporate adjustments (derived from statistical procedures) to the original historical station data to account for discontinuities from non-climatic factors,...
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Adjusted and Homogenized Canadian Climate Data (AHCCD) Trends
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Adjusted and Homogenized Canadian Climate Data (AHCCD) are climate station datasets that incorporate adjustments (derived from statistical procedures) to the original historical station data to account for discontinuities from non-climatic factors,...
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Surface Weather Observations
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Surface Observations measured at the automatic and manual stations of the Environment and Climate Change Canada and partners networks, either for a single station, or for the stations of specific provinces and territories (last 30 days)
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Virtual Climate Stations (LTCE)
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A Virtual Climate station is the result of threading together climate data from proximate current and historical stations to construct a long term threaded data set. For the purpose of identifying and tabulating daily extremes of record for...
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Daily Extremes of Records (LTCE) – Temperature
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Anomalous weather resulting in Temperature and Precipitation extremes occurs almost every day somewhere in Canada. For the purpose of identifying and tabulating daily extremes of record for temperature, precipitation and snowfall, the Meteorological...
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Daily Extremes of Records (LTCE) – Precipitation
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Anomalous weather resulting in Temperature and Precipitation extremes occurs almost every day somewhere in Canada. For the purpose of identifying and tabulating daily extremes of record for temperature, precipitation and snowfall, the Meteorological...
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Daily Extremes of Records (LTCE) – Snowfall
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Anomalous weather resulting in Temperature and Precipitation extremes occurs almost every day somewhere in Canada. For the purpose of identifying and tabulating daily extremes of record for temperature, precipitation and snowfall, the Meteorological...
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Air Quality Health Index – Forecasts
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The Air Quality Health Index (AQHI) is a scale designed to help quantify the quality of the air in a certain region on a scale from 1 to 10. When the amount of air pollution is very high, the number is reported as 10+. It also includes a category that...
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Air Quality Health Index – Observations
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The Air Quality Health Index (AQHI) is a scale designed to help quantify the quality of the air in a certain region on a scale from 1 to 10. When the amount of air pollution is very high, the number is reported as 10+. It also includes a category that...
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Real-time meteorological bulletins
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Real-time meteorological bulletins (last 140 days)
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Projected annual anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected seasonal anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected monthly anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected annual CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected seasonal CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected monthly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected annual anomaly for 20 years average CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected seasonal anomaly for 20 years average CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical annual CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical annual anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical seasonal CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical seasonal anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical monthly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Historical monthly anomaly CMIP5
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The Global climate model scenarios dataset is based on an ensemble of global climate model projections from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Multi-model ensembles of modelled output (actual value) and projected change...
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Projected annual anomaly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected seasonal anomaly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected annual DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected seasonal DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected monthly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected annual anomaly for 20 years average DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Projected seasonal anomaly for 20 years average DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical annual DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical annual anomaly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical seasonal DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical seasonal anomaly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical monthly DCS
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The statistically downscaled climate scenarios dataset provides multi-model ensembles of modelled output (actual value) and projected change (anomaly) are available for historical simulations and three emission scenarios, RCP2.6, RCP4.5, RCP8.5, at a...
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Historical indices
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High-resolution statistically downscaled climate indices relevant to climate change impacts in Canada are available at a 10 km spatial resolution and an annual temporal resolution for 1951-2100. The climate indices are based on model projections from...
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Projected indices
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High-resolution statistically downscaled climate indices relevant to climate change impacts in Canada are available at a 10 km spatial resolution and an annual temporal resolution for 1951-2100. The climate indices are based on model projections from...
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Historical SPEI-1
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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...
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Historical SPEI-3
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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...
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Historical SPEI-12
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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...
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Projected SPEI-1
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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...
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Projected SPEI-3
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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...
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Projected SPEI-12
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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...
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CanGRD historical annual trend
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CANGRD data are interpolated from adjusted and homogenized climate station data (i.e., AHCCD datasets). Homogenized climate data incorporate adjustments to the original station data to account for discontinuities from non-climatic factors, such as...
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CanGRD historical annual anomaly
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Gridded annual mean temperature anomalies derived from daily minimum, maximum and mean surface air temperatures (degrees Celsius) and anomalies derived from daily total precipitation is available at a 50km resolution across Canada. The Canadian...
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CanGRD historical monthly anomaly
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Gridded monthly mean temperature anomalies derived from daily minimum, maximum and mean surface air temperatures (degrees Celsius) and anomalies derived from daily total precipitation is available at a 50km resolution across Canada. The Canadian...
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CanGRD historical seasonal trend
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CANGRD data are interpolated from adjusted and homogenized climate station data (i.e., AHCCD datasets). Homogenized climate data incorporate adjustments to the original station data to account for discontinuities from non-climatic factors, such as...
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CanGRD historical seasonal anomaly
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Gridded seasonal mean temperature anomalies derived from daily minimum, maximum and mean surface air temperatures (degrees Celsius) and anomalies derived from daily total precipitation is available at a 50km resolution across Canada. The Canadian...
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Regional Deterministic Precipitation Analysis (RDPA) 24 hours accumulation at 15km
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 24 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Regional Deterministic Precipitation Analysis (RDPA) 6 hours accumulation at 15 km
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 6 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Regional Deterministic Precipitation Analysis (RDPA) 24 hours accumulation
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 24 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Regional Deterministic Precipitation Analysis (RDPA) 6 hours accumulation
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 6 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Regional Deterministic Precipitation Analysis (RDPA) 24 hours accumulation (preliminary)
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 24 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Regional Deterministic Precipitation Analysis (RDPA) 6 hours accumulation (preliminary)
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The Regional Deterministic Precipitation Analysis (RDPA) produces a best estimate of the amount of precipitation that occurred over recent past periods of 6 hours. The estimate integrates data from in situ precipitation gauge measurements, weather...
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Canadian Seasonal to Inter-annual Prediction System
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The Canadian Seasonal to Inter-annual Prediction System (CanSIPS) carries out physics calculations to arrive at probabilistic predictions of atmospheric elements from the beginning of a month out to up to 12 months into the future. Atmospheric...
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