Changes

On February 19, 2026 at 1:41:23 PM UTC, Michael van der Laan:
Removed maintainer from Groundwater Vulnerability Map For South Africa
Removed maintainer email from Groundwater Vulnerability Map For South Africa
Removed author from Groundwater Vulnerability Map For South Africa
Updated description of Groundwater Vulnerability Map For South Africa from
Auto-imported dataset for groundwater-vulnerability-map-for-south-africa
to
This study developed a national groundwater vulnerability map for South Africa using a modified DRASTIC approach called the DRASTIC Specific Vulnerability Index (DSVI), which incorporates an additional anthropogenic impact parameter (land use). The methodology combines multiple hydrogeological and environmental layers—depth to groundwater, recharge, aquifer media, soil media, topography (slope), vadose zone impact, hydraulic conductivity, and land use—which are rated and weighted (including use of the Analytical Hierarchy Process) and combined in a GIS environment to produce a final vulnerability surface. The resulting national vulnerability raster is reported at 150 × 150 m spatial resolution. The vulnerability classes are compared against groundwater quality indicators including borehole electrical conductivity (EC) from the National Groundwater Database and a nitrate map, showing broad similarities between higher vulnerability zones and poorer groundwater quality patterns. The published paper emphasises appropriate scale use (regional planning rather than site-specific interpretation) and recommends periodic updating and careful communication to reduce misuse.
Changed value of field authors to [{'author_department': '', 'author_email': 'cmusekiwa@geoscience.org.za', 'author_name': 'Chiedza', 'author_organization': 'Council for Geoscience', 'author_surname': 'Musekiwa ', 'contact_same_as_author': 'True'}, {'author_department': '', 'author_email': '', 'author_name': 'Kwazikwakhe', 'author_organization': 'Department of Water Affairs', 'author_surname': 'Majola'}] in Groundwater Vulnerability Map For South Africa
Changed value of field publisher to South African Journal of Geomatics in Groundwater Vulnerability Map For South Africa
Changed value of field publication_date to 2013-04-30 in Groundwater Vulnerability Map For South Africa
Changed value of field spatial to {"type": "Polygon", "coordinates": [[[13.165308, -20.629147], [35.7811468, -20.629147], [35.7811468, -35.2462649], [13.165308, -35.2462649], [13.165308, -20.629147]]]} in Groundwater Vulnerability Map For South Africa
Changed value of field wro_theme to groundwater in Groundwater Vulnerability Map For South Africa
Changed value of field uploader_estimation_of_extent_of_processing to refined in Groundwater Vulnerability Map For South Africa
Changed value of field keywords to groundwater vulnerability, DRASTIC, DSVI, aquifer vulnerability, groundwater contamination, land use, GIS, AHP, hydraulic conductivity, vadose zone, recharge, South Africa in Groundwater Vulnerability Map For South Africa
Changed value of field data_collection_organization to Council for Geoscience and Department of Water Affairs in Groundwater Vulnerability Map For South Africa
Removed the following fields from Groundwater Vulnerability Map For South Africa
- Dataset language
- topic
Uploaded a new file to resource aquifer_vulner.dbf in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.sbn in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource aquifer_vulner.sbn in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.shx in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource musekiwa_and_majola_2013_groundwater_vulnerability_map_for_south_africa_id_32969b30-16c8-411a-ad99-4e5232e98b48.pdf in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource aquifer_vulner.sbx in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.shp in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource groundwater_vulnerability_map_for_south_africa_id_e9b27f04-705d-43a4-9b55-fa2773a628f2.zip in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.dbf in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.sbx in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource aquifer_vulner.shp in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource Aquifer_vulner.prj in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource aquifer_vulner.prj in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource annual_enterprise_survey_2021_financial_year_provisional_csv_id_d8859ca6-5107-43ca-937d-7fb0d736aad0.csv in Groundwater Vulnerability Map For South Africa
Uploaded a new file to resource aquifer_vulner.shx in Groundwater Vulnerability Map For South Africa
              
    
          
          
        
        
            f 1 { f 1 {
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            n 3   "author": "Water Research Observatory", n 3   "alternative_identifier": "",
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            4   "author_email": null, 5   "author_email": null,
            5   "authors": [ 6   "authors": [
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            9       "author_name": "Water Research Observatory", 10       "author_name": "Chiedza",
            10       "author_organization": "Water Research Observatory", 11       "author_organization": "Council for Geoscience",
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            12       "contact_same_as_author": true 13       "contact_same_as_author": "True"
            14     },
            15     {
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            19       "author_organization": "Department of Water Affairs",
            20       "author_surname": "Majola"
            21     }
            22   ],
            23   "citation_title": "MUSEKIWA C and MAJOLA K (2013) Groundwater 
            24 Vulnerability Map for South Africa. South African Journal of Geomatics 
            25 2 (2) 152-163.",
            26   "contact_person": [
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            46   "dataset_license_url": 
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            19   "did_author_or_contact_organization_collect_the_data": "false", 48   "did_author_or_contact_organization_collect_the_data": "false",
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            54 vulnerability, groundwater contamination, land use, GIS, AHP, 
            55 hydraulic conductivity, vadose zone, recharge, South Africa",
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            42   "name": "groundwater-vulnerability-map-for-south-africa", 69   "name": "groundwater-vulnerability-map-for-south-africa",
            n 43   "notes": "Auto-imported dataset for  n 70   "notes": "This study developed a national groundwater vulnerability 
            44 groundwater-vulnerability-map-for-south-africa", 71 map for South Africa using a modified DRASTIC approach called the 
            72 DRASTIC Specific Vulnerability Index (DSVI), which incorporates an 
            73 additional anthropogenic impact parameter (land use). The methodology 
            74 combines multiple hydrogeological and environmental layers\u2014depth 
            75 to groundwater, recharge, aquifer media, soil media, topography 
            76 (slope), vadose zone impact, hydraulic conductivity, and land 
            77 use\u2014which are rated and weighted (including use of the Analytical 
            78 Hierarchy Process) and combined in a GIS environment to produce a 
            79 final vulnerability surface. The resulting national vulnerability 
            80 raster is reported at 150 \u00d7 150 m spatial resolution. The 
            81 vulnerability classes are compared against groundwater quality 
            82 indicators including borehole electrical conductivity (EC) from the 
            83 National Groundwater Database and a nitrate map, showing broad 
            84 similarities between higher vulnerability zones and poorer groundwater 
            85 quality patterns. The published paper emphasises appropriate scale use 
            86 (regional planning rather than site-specific interpretation) and 
            87 recommends periodic updating and careful communication to reduce 
            88 misuse.",
            45   "num_resources": 15, 89   "num_resources": 15,
            46   "num_tags": 0, 90   "num_tags": 0,
            47   "organization": { 91   "organization": {
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            55     "state": "active", 99     "state": "active",
            56     "title": "Water Research Observatory", 100     "title": "Water Research Observatory",
            57     "type": "organization" 101     "type": "organization"
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            59   "owner_org": "5bb446d5-d272-4b69-9a6d-79733926291a", 103   "owner_org": "5bb446d5-d272-4b69-9a6d-79733926291a",
            60   "private": false, 104   "private": false,
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            62   "publisher": "Water Research Observatory", 106   "publisher": "South African Journal of Geomatics",
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            74       "is_data_supplementary": "False", 118       "is_data_supplementary": "False",
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