Proportion of days per month with precip > 0.2mm : ANUClimate 1.0, 0.01 degree, Australian Coverage
Proportion of days in each month with precipitation above 0.2 mm for the Australian continent between 1970-2014. The proportion of wet days per month is useful for estimating evaporation rates and water need and use, and also for estimating solar radiation. Modelled by using ANUSPLIN Version 4.5 to fit trivariate thin plate smoothing spline functions of longitude, latitude and vertically exaggerated elevation. Station elevations were 0.05 degree local averages of grid values from the GEODATA 9 second DEM version 3 as provided by ANUClimate_v1-0_digital-elevation-model-05deg-average_terrain_0-01deg. Anomaly based interpolation was not used because it gave no improvement over direct interpolation, due to the extensive daily precipitation network and the strong spatial coherence of daily rainfall occurrence. Monthly data values were obtained from Bureau of Meteorology daily rainfall data at stations where there were at least 25 days of record and no accumulated days of record, giving an average of 6320 data points per month between 1970 and 2014. Automated quality assessment rejected on average 35 data values per month (0.006%) with extreme studentised residuals. The root mean square of all individual cross validation residuals provided by the spline analysis is 0.060, corresponding to a root men square error in estimating the number of wet days of around 1.8 days per month. A comprehensive assessment of the analysis of the final interpolated grids is in preparation.
Simple
Identification info
- Alternate title
- rainfall-proportion-greater-than-threshold
- Edition
- 4
- Date (Creation)
- 2015-06-26 09:00:00
- Date (Publication)
- 2016-09-01 16:04:00
- Date (Revision)
- 2024-06-21 14:18:18
- Other citation details
- NCI Project: rr9
Principal investigator
Author
Author
- Purpose
- The proportion of wet days per month is useful for estimating evaporation rates and water need and use, and also for estimating solar radiation.
- Status
- Completed
Point of contact
Point of contact
Point of contact
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
- Maintenance and update frequency
- As needed
- Keywords
-
- EARTH SCIENCE > ATMOSPHERE > PRECIPITATION
Resource specific usage
- Specific usage
- 04:Earth Sciences
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
- Distribution format
-
- netCDF-4
- OnLine resource
- NCI THREDDS Data Server
- mrd:mediumName
- /g/data/rr9/eMAST_data/ANUClimate/ANUClimate_v1-0_rainfall-proportion-greater-than-threshold_monthly_0-01deg_1970-2016
Resource lineage
- Statement
- Proportion of days in each month with precipitation above 0.2 mm for the Australian continent between 1970-2012 has been modelled using ANUSPLIN 4.5
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
-
urn:uuid/41e7886a-6981-45b3-baab-a1cdad67bc28
- Title
- TERN GeoNetwork UUID
- Character encoding
- UTF8
Identifier
- Codespace
- https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/
- Description
- Parent Metadata Record
Type of resource
- Resource scope
- Dataset
- Name
- dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/41e7886a-6981-45b3-baab-a1cdad67bc28
Point-of-truth metadata URL
- Date info (Creation)
- 2016-09-01T16:04:00
Metadata standard
- Title
- ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
- Edition
- 1.1