TERN Geospatial Catalogue
Mean monthly total shortwave radiation on a sloping surface modelled using the 1" DEM-S - 1" mosaic
Mean monthly solar radiation was modelled across Australia using topography from the 1 arcsecond resolution SRTM-derived DEM-S and climatic and land surface data. The SRAD model (Wilson and Gallant, 2000) was used to derive:
• Incoming short-wave radiation on a sloping surface
• Short-wave radiation ratio (shortwave on sloping surface / shortwave on horizontal surface)
• Incoming long-wave radiation
• Outgoing long-wave radiation
• Net long-wave radiation
• Net radiation
• Sky view factor
All radiation values are in MJ/m2/day except for short-wave radiation ratio which has no units. The sky view factor is the fraction of the sky visible from a grid cell relative to a horizontal plane.
The radiation values are determined for the middle day of each month (14th or 15th) using long-term average atmospheric conditions (such as cloudiness and atmospheric transmittance) and surface conditions (albedo and vegetation cover). They include the effect of terrain slope, aspect and shadowing (for sun positions at 5 minute intervals from sunrise to sunset), direct and diffuse radiation and sky view.
The monthly data in this collection are available at 1 arcsecond resolution as single (mosaicked) grids for Australia in TIFF format. The 1 arcsecond tiled data can be found here: https://data.csiro.au/dap/landingpage?pid=csiro:9530 .
The 3 arc-second resolution versions of these radiation surfaces have been produced from the 1 arc-second resolution surfaces, by aggregating the cells in a 3x3 window and taking the mean value.
The 3 arcsecond mosaic data can be found here: https://data.csiro.au/dap/landingpage?pid=csiro:188 52
Simple
Identification info
- Date (Publication)
- 2021-01-12
- Date (Revision)
- 2021-01-12
- Edition
- v2
Publisher
Commonwealth Scientific and Industrial Research Organisation
26 Dick Perry Avenue, Kensington, Western Australia,
6151, Australia
Kensington
Western Australia
6151
Australia
Author
Commonwealth Scientific and Industrial Research Organisation - Austin, Jenet
Clunies Ross Street, Black Mountain, 2601, Australian Capital Territory, Australia
Black Mountain
Australian Capital Territory
2601
Australia
Author
Commonwealth Scientific and Industrial Research Organisation - Gallant, John
Clunies Ross Street, Black Mountain, 2601, Australian Capital Territory, Australia
Black Mountain
Australian Capital Territory
2601
Australia
Author
CSIRO Land and Water (2014-2022) - Van Niel, Thomas G
Castray Esplanade, Battery Point, 7004, Tasmania, Australia
Battery Point
Tasmania
7004
Australia
Identifier
- Keywords (Discipline)
-
- Monthly shortwave radiation
- LAND Topography Models
- ECOLOGY Landscape
- TERN_Soils
- Land Surface
- Australia
- ANZSRC Fields of Research
Extent
N
S
E
W
))
Temporal extent
- Time period
- 2000-02-11 2000-02-22
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
- Other restrictions
- Other constraints
- Data is accessible online and may be reused in accordance with licence conditions
Resource constraints
- Classification
- Unclassified
- Credit
- All Rights (including copyright) CSIRO 2014.
- Title
- 1 arcsecond resolution tiles: Gallant, John; Austin, Jenet; Van Niel, Tom (2014): Mean monthly total shortwave radiation on a sloping surface modelled using the 1" DEM-S - 1" tiles. v3. CSIRO. Data Collection.
- Website
-
1 arcsecond resolution tiles: Gallant, John; Austin, Jenet; Van Niel, Tom (2014): Mean monthly total shortwave radiation on a sloping surface modelled using the 1" DEM-S - 1" tiles. v3. CSIRO. Data Collection.
1 arcsecond resolution tiles
- Title
- 3 arcsecond resolution mosaics: Gallant, John; Austin, Jenet; Van Niel, Tom (2014): Mean monthly total shortwave radiation on a sloping surface modelled using the 1" DEM-S - 3" mosaic. v1. CSIRO. Data Collection.
Distribution Information
Distributor
Distributor
Commonwealth Scientific and Industrial Research Organisation
26 Dick Perry Avenue, Kensington, Western Australia,
6151, Australia
Kensington
Western Australia
6151
Australia
- Distribution format
-
- OnLine resource
- http://hdl.handle.net/102.100.100/39968?index=1
Resource lineage
- Statement
- Source data 1. 1 arcsecond SRTM-derived Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016) 2. Aspect derived from the 1 arcsecond SRTM DEM-S 3. Slope derived from the 1 arcsecond SRTM DEM-S 4. Monthly cloud cover fraction (Jovanovic et al., 2011) 5. Monthly albedo derived from AVHRR (Donohue et al., 2010) 6. Monthly minimum and maximum air temperature (Bureau of Meteorology) 7. Monthly vapour pressure (Bureau of Meteorology) 8. Monthly fractional cover (Donohue et al., 2010) 9. Monthly black-sky and white-sky albedo from MODIS (MCD43A3, B3) (Paget and King, 2008; NASA LP DAAC, 2013) 10. Measurements of daily sunshine hours, 9 am and 3pm cloud cover, and daily solar radiation from meteorological stations around Australia (Bureau of Meteorology) Solar radiation model Solar radiation was calculated using the SRAD model (Wilson and Gallant, 2000), which accounts for: Annual variations in sun-earth distance Solar geometry based on latitude and time of year The orientation of the land surface relative to the sun Shadowing by surrounding topography Clear-sky and cloud transmittance Sunshine fraction (cloud-free fraction of the day) in morning and afternoon Surface albedo The effects of surface temperature on outgoing long-wave radiation, which is modulated by incoming radiation and moderated by vegetation cover Atmospheric emissivity based on vapour pressure All input parameters were long-term averages for each month, i.e., monthly climatologies of cloud cover, air temperature, vapour pressure, fractional cover, AVHRR albedo and MODIS albedo. Circumsolar coefficient was fixed both spatially and temporally at 0.25, while clear sky atmospheric transmissivity and cloud transmittance were varied. Transmittance measures the fraction of radiation passing through a material (air or clouds in this case), while transmissivity measures that fraction for a specified amount of material. SRAD uses a transmittance parameter for cloud, representing an average of all cloud types during cloudy periods, and a transmissivity parameter for clear sky so that the transmittance can vary with the position of the sun in the sky and hence the thickness of atmosphere that radiation passes through on its way to the ground. The clear sky transmissivity τ and cloud transmittance β were calibrated using observed daily radiation and sunshine hours. References Donohue R. J., McVicar T. R. and Roderick M. L. (2010a). Assessing the ability of potential evaporation formulations to capture the dynamics in evaporative demand within a changing climate. Journal of Hydrology, 386, 186-197, doi:10.1016/j.jhydrol.2010.03.020. Donohue, R. J., T. R. McVicar, L. Lingtao, and M. L. Roderick (2010b). A data resource for analysing dynamics in Australian ecohydrological conditions, Austral Ecol, 35, 593–594, doi: 10.1111/j.1442-9993.2010.02144.x. Erbs, D. G., S. A. Klein, and J. A. Duffie (1982), Estimation of the diffuse radiation fraction for hourly, daily and monthly-average global radiation, Solar Energy, 28(4), 293-302. Jovanovic, B., Collins, D., Braganza, K., Jakob, D. and Jones, D.A. (2011). A high-quality monthly total cloud amount dataset for Australia. Climatic Change, 108, 485-517. NASA Land Processes Distributed Active Archive Center (LP DAAC) (2013). MCD43A3, B3. USGS/Earth Resources Observation and Science (EROS) Center, Sioux Falls, South Dakota Paget, M.J. and King, E.A. (2008). MODIS Land data sets for the Australian region. CSIRO Marine and Atmospheric Research Internal Report No. 004. https://remote-sensing.nci.org.au/u39/public/html/modis/lpdaac-mosaics-cmar Wilson, J.P. and Gallant, J.C. (2000) Secondary topographic attributes, chapter 4 in Wilson, J.P. and Gallant, J.C. Terrain Analysis: Principles and Applications, John Wiley and Sons, New York.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/aa7612ab-1822-5f0b-80b8-1e9f30e2ae65
- Title
- TERN GeoNetwork UUID - Commonwealth Scientific and Industrial Research Organisation
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/aa7612ab-1822-5f0b-80b8-1e9f30e2ae65
Point of truth URL of this metadata record
- Date info (Creation)
- 2021-01-12T11:34:12+11:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0
Identifier
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available