SANBI Metadata
National Wetland Map1 Waterbodies Merge (NWM Beta Version)
Created from the NLC2000 dataset and the national Wetland Probability Map to create the first National Wetland Map (NWM1) Beta version
Simple
- Date (Publication)
- 2019-11-04
- Purpose
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First national wetland inventory.
Mapping the locality of wetlands is essential so that they may be classified into the different wetland ecosystem types across the country, which in turn can be used along with other data to identify wetlands of significance.
- Credit
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Van Deventer, H., Smith-Adao, L., Mbona, N., Petersen, C., Skowno, A., Collins, N.B., Grenfell, M., Job, N., Lötter, M., Ollis, D., Scherman, P., Sieben, E. & Snaddon, K. 2018. South African National Biodiversity Assessment 2018: Technical Report. Volume 2a: South African Inventory of Inland Aquatic Ecosystems (SAIIAE). Version 3, final released on 3 October 2019. Council for Scientific and Industrial Research (CSIR) and South African National Biodiversity Institute (SANBI): Pretoria, South Africa. Report Number: CSIR report number CSIR/NRE/ECOS/IR/2018/0001/A; SANBI report number http://hdl.handle.net/20.500.12143/5847
- Status
- Historical archive
- Maintenance and update frequency
- As needed
- Maintenance note
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This layer is a static NWM1. The latest versions of the National Wetland Map can be viewed on the South African Inventory of Inland and Aquatic Ecosystems project page on BGIS
- Keywords
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Wetland inventory
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National Wetland Map
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- Use limitation
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There are no access limitations for this item.
- Access constraints
- Copyright
- Use constraints
- Copyright
- Other constraints
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There are no access limitations for this item.
None
- Spatial representation type
- Vector
- Denominator
- 5000
- Language
- English
- Character set
- UTF8
- Topic category
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- Environment
- Inland waters
))
- Supplemental Information
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WGS 1984
Projection: Albers
False_Easting: 0.0
False_Northing: 0.0
Central_Meridian: 25.0
Standard_Parallel_1: -24.0
Standard_Parallel_2: -33.0
Latitude_Of_Origin: 0.0
Linear Unit: Meter (1.0)
Distributor
- OnLine resource
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NBA South African Inventory of Inland Aquatic Ecosystems
(
WWW:LINK-1.0-http--link
)
The National Wetland Map I (beta version) was the first development for the South African National Wetland inventory. This layer formed the basis for subsequent developments which have improved the mapping and classification of wetlands in South Africa.
- OnLine resource
- http://hdl.handle.net/20.500.12143/5847
- Hierarchy level
- Dataset
- Statement
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The first National Wetland Map (NWM1) Beta Version or Map 1 layer was derived from the National Land Cover 2000 (NLC2000) GIS layer (Thompson et al. 2002; Van den Berg et al. 2008) in which wetland polygons are described as ‘Wetland’ or ‘Waterbody’ (Figure 3.1). NLC2000 was derived from multi-season Landsat imagery primarily of the year 2000 (GTI 2008). NWM1 was released in 2006 for public use and its polygons did not distinguish between natural or artificial water bodies but merely between water bodies and wetland categories, as derived from NLC2000.
The National Wetland Probability Map (NWPM) is defined as “illustrating the likely occurrence of modeled wetlands in a given locality, based on a combination of terrain characteristics and multi-season Landsat imagery, acquired primarily in 2000”.
- File identifier
- d720e086-e729-446f-84de-f91b81d78fa1 XML
- Metadata language
- English
- Character set
- UTF8
- Date stamp
- 2019-11-05T12:02:05
- Metadata standard name
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SANS 1878
- Metadata standard version
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FGDC-STD-001-1998
Overviews
Spatial extent
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