Adjusted daily rainfall and snowfall dataset for Canada

The AdjDlyRS dataset contains adjusted daily rainfall (R) and snowfall (S) data from all Canadian stations reporting rainfall and snowfall for which we have metadata to do the adjustments (Wang et al. 2017). The processing includes inspection and adjustments using quality control procedures customized for producing gridded datasets (Wang et al. 2017), including: (1) conversion of snowfall ruler measurements to their water equivalents; (2) corrections for gauge undercatch and evaporation due to wind effect, for gauge specific wetting loss, and for trace precipitation amount; and (3) treatment of flags (e.g. accumulation flags). Version 2020 or later versions of this dataset also includes identification and correction of random erroneous values, including false zeros, which usually arose from missing values being misrecorded as 0 precipitation in the climate Archive (Cheng et al. 2022). All the identified erroneous daily values are set to missing. A total of 3346 stations were processed, but the data series are not homogenized. Most of the stations are located in southern Canada and have short and/or seasonal data records. The number of stations changes over time: there are 512-958 stations in the period 1948-1964, 1012-2038 stations in the period 1965-2008, and only around 300 stations in the recent years. Note that the unadjusted/raw total precipitation data in Environment and Climate Change Canada's digital Archive underestimate more than 25% of the total precipitation in northern Canada, and about 10-15% in most of southern Canada (Wang et al. 2017).

References: (1) Wang, X. L., Xu, B. Qian, Y. Feng, E. Mekis, 2017: Adjusted daily rainfall and snowfall data for Canada, Atmosphere-Ocean, 55:3, 155-168, DOI:10.1080/07055900.2017.1342163. (2) Cheng, V. Y.S., X. L. Wang, Y. Feng, 2022: A quality control system for historical in situ precipitation data. Atmosphere-Ocean (submitted)

Basic view

Metadata Record Information

File Identifier
d8616c52-a812-44ad-8754-7bcc0d8de305 XML
Date Stamp
2022-11-30T22:53:49
Metadata language

eng; CAN
Character set
UTF8
Hierarchy Level
Dataset
Author
  Government of Canada; Environment and Climate Change Canada - Environment and Climate Change Canada ( Public inquiries centre )
Fontaine Building 12th floor, 200 Sacré-Coeur Blvd , Gatineau , Quebec , K1A 0H3 , Canada
1-800-668-6767
http://ec.gc.ca
 

Data identification

Date (Creation)
2017-03-30
Date (Publication)
2017-04-14
Status
On going
Metadata language

eng
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
Maintenance and Update Frequency
As needed
Spatial representation type
Vector
Custodian
  Government of Canada; Environment and Climate Change Canada; Climate Research - Dr. Vincent Cheng

Keywords

Theme

  • rainfall, snowfall, climate change, Canada

ECCC Information Category EN

  • Weather and Climate

Government of Canada Core Subject Thesaurus

  • Precipitation

  • Climate change

Business Functions

  • Provide Climate Information Products and Services

  • Deliver Climate Products and Services to Clients

Geography

  • National (CA)

external.theme.EC_Branch

  • Science and Technology Branch

external.theme.EC_Directorate

  • Atmospheric Science and Technology

external.theme.GC_Security_Level

  • Unclassified
 
Use Limitation

Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )

Access Constraints
License
Use Constraints
License
Begin Date
2017-03-30

Extent

N
S
E
W
thumbnail


 
 

Ref. system Reference Systems

Reference system identifier
EPSG / EPSG:4326 /
 

Distribution

Distribution Formats

Distribution format
  • ZIP ( v2 )

 
Distributor
  Government of Canada; Environment and Climate Change Canada - Environment and Climate Change Canada ( Public inquiries centre )
Fontaine Building 12th floor, 200 Sacré-Coeur Blvd , Gatineau , Quebec , K1A 0H3 , Canada
1-800-668-6767
http://ec.gc.ca
 
 

Overviews

N
S
E
W
thumbnail


Keywords

rainfall, snowfall, climate change, Canada
Business Functions
Deliver Climate Products and Services to Clients Provide Climate Information Products and Services
ECCC Information Category EN
Weather and Climate
Government of Canada Core Subject Thesaurus
Climate change Precipitation
external.theme.EC_Branch
Science and Technology Branch
external.theme.EC_Directorate
Atmospheric Science and Technology
external.theme.GC_Security_Level
Unclassified

Provided by

Share on social sites

Associated resources

Not available