Ontario In-filled Climate Data Coordinate system: 4269 - "NAD83" Abstract: Revision Note: Please note that this dataset has been revised and is available from the Land Information Ontario (LIO) Warehouse. The database contains the daily climate parameters for the 339 major Atmospheric Environment Service of Environment Canada (AES) stations having filled in parameters during the period of 1950 to 2005. The remaining 7 databases contain a table containing hourly rainfall records for stations during the same period, which are divided into regions for manageability. The database was created using MS Access 2000. The MS Access table "I_Stations" contains the spatial coordinates for the AES Stations across Ontario for mapping purposes. Use this dataset with caution when conducting analysis, several point appear to have been located incorrectly.

Additional Documentation

• Metadata Information

  Language: eng; CAN

  Last Update: 2013-04-12

  Other Maintenance Requirements:

  d1bd5c35-2d11-4071-9f63-bf2739013973

  Metadata Contact:

  Scholars Portal, Ontario Council of University Libraries Toronto Ontario, Canada

  Contact Instructions:

  gis@scholarsportal.info

  Metadata Standard:

  North American Profile of ISO19115:2003 - Geographic Information

• Citation Information

  
  
  

  Ontario Ministry of Natural Resources Peterborough Ontario, Canada

  Themes or Categories of the Resource: climatologyMeteorologyAtmosphere

  Keywords:

  Weather Stations, AES Stations, WWIG Source Water Protection

  PRECIPITATION, TEMPERATURE, WATER, WATER MANAGEMENT, WATER LEVELS, CLIMATE, Climate change

  Precipitation, Précipitation, Climate, Climat, Temperature, Température, Water, Water management, Eau, Gestion de l'eau

  Place Keywords:

  Continent > North America > Canada > Ontario

  Purpose:

  To aid in manipulation and analysis of the continuous climate datasets, a database solution has been developed to house the continuous temperature and precipitation data for approximately 339 climate stations for the time period of 1950-2005.

  Dataset Language: eng; CAN

  Status: completed

  Update Frequency: asNeeded

  Spatial Representation Type: textTable

  Processing Environment:

  MS Access 2000

  Extent

  West Longitude: -95.153668

  East Longitude: -74.320109

  North Latitude: 56.859365

  South Latitude: 41.676556

  
  

  Supplemental Information:

  Background: Climate records frequently have missing data within the complete climate record. These gaps may be short term in nature (over a number of days due to equipment malfunction), or long term (over a period of years, due to station closures). Daily climate records typically have fewer gaps than hourly records, and are usually associated with stations closures. Hourly data sets typically contain more significant gaps, and are usually associated with equipment malfunction or seasonal closings. Harold Schroeter, et. al. (2000) found that many hourly data sets are missing over 40 percent of the data set. Missing data can be estimated, or filled in, using nearby climate stations to create a continuous data set before completing hydrologic modelling tasks. In 2006, the MNR contracted Schroeter and Associates to fill in temporal data gaps associated with climate stations maintained by Atmospheric Environment Service (AES) of Environment Canada (EC). These gaps include daily and hourly precipitation and temperature records in Ontario within the time period of 1950 to 2005. Sources of data used for this project included primarily AES stations in addition to some stations maintained by Conservation Authorities. As many as 1400 stations were considered. In 2007, AquaResource Inc. was contracted to undertake a review of the work completed by Schroeter and Associates. This review involved compiling all climate data processed and generated by Schroeter and Associates into relational databases. The Ontario In-filled Climate Data is a packaged product containing 8 databases of filled temporal data gaps. These filled data gaps include both daily and hourly precipitation and temperature records.

• Spatial Representation - Vector

  Geometric Objects:

  Object Type: point

  Object Count: 245

• Reference System Information

  Reference System Identifier

  Value: 4269

  Code Space: http://www.epsg-registry.org/

• Data Quality Information

  Scope Level: dataset

  
  

  Process step:

  It should be noted that with all climate data, there will exist erroneous or biased values within the dataset. These values may be affected by equipment malfunction/vandalism, or improper station siting/operation. The users of this climate data should exercise caution when utilizing this data, and be aware that discrepancies still exist.

  Atmospheric Environmental Services (AES) Climate Stations: Data collected from 01/01/1950 to 31/12/2005. The climate station parameters used as the source data in this database include daily temperature, daily rainfall, and hourly rainfall.

• Distribution Information

  Distributor:

  Ontario Geospatial Data Exchange, Ministry of Natural Resource (OMNR) Peterborough Ontario, Canada