Cambios

              
    

          
          
        
        

            
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{
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{
            
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  "agreement": "true",
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  "agreement": "true",
            
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  "alternative_identifier": "DOI: 10.1016/j.agwat.2025.109592",
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  "alternative_identifier": "DOI: 10.1016/j.agwat.2025.109592",
            
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  "author": null,
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  "author": null,
            
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  "author_email": null,
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  "author_email": null,
            
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  "authors": [
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  "authors": [
            
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    {
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    {
            
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      "author_department": "Plant and Soil Sciences",
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      "author_department": "Plant and Soil Sciences",
            
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      "author_email": "cindy.viviers63@gmail.com",
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      "author_email": "cindy.viviers63@gmail.com",
            
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      "author_name": "Cindy",
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      "author_name": "Cindy",
            
11
      "author_organization": "University of Pretoria",
11
      "author_organization": "University of Pretoria",
            
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      "author_surname": "Viviers",
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      "author_surname": "Viviers",
            
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      "contact_same_as_author": "true"
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      "contact_same_as_author": "true"
            
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    },
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    },
            
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    {
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    {
            
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      "author_department": "",
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      "author_department": "",
            
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      "author_email": "vanderLaanM@arc.agric.za",
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      "author_email": "vanderLaanM@arc.agric.za",
            
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      "author_name": "Michael",
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      "author_name": "Michael",
            
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      "author_organization": "Agricultural Research Council",
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      "author_organization": "Agricultural Research Council",
            
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      "author_surname": "van der Laan"
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      "author_surname": "van der Laan"
            
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    }
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    }
            
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  ],
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  ],
            
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  "citation_title": "VIVIERS C and VAN DER LAAN M (2025) Assessing the 
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  "citation_title": "VIVIERS C and VAN DER LAAN M (2025) Assessing the 
            
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use of remotely sensed surface water flux to estimate net groundwater 
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use of remotely sensed surface water flux to estimate net groundwater 
            
25
storage change in an aquifer predominantly used for irrigation. 
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storage change in an aquifer predominantly used for irrigation. 
            
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Agricultural Water Management 316 109592. 
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Agricultural Water Management 316 109592. 
            
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https://doi.org/10.1016/j.agwat.2025.109592.",
27
https://doi.org/10.1016/j.agwat.2025.109592.",
            
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  "contact_person": [
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  "contact_person": [
            
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    {
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    {
            
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      "contact_department": "Plant and Soil Sciences",
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      "contact_department": "Plant and Soil Sciences",
            
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      "contact_email": "cindy.viviers63@gmail.com",
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      "contact_email": "cindy.viviers63@gmail.com",
            
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      "contact_name": "Cindy",
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      "contact_name": "Cindy",
            
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      "contact_orgnization": "University of Pretoria"
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      "contact_orgnization": "University of Pretoria"
            
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    }
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    }
            
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  ],
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  ],
            
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  "creator_user_id": "bc28a33f-dc21-4795-a57f-da7cd1aa23ea",
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  "creator_user_id": "bc28a33f-dc21-4795-a57f-da7cd1aa23ea",
            
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  "data_classification": "time series",
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  "data_classification": "time series",
            
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  "data_collection_organization": "Agricultural Research Council",
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  "data_collection_organization": "Agricultural Research Council",
            
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  "data_reference_date": [
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  "data_reference_date": [
            
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    {
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    {
            
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      "data_reference_date_from": "1981-01-01",
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      "data_reference_date_from": "1981-01-01",
            
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      "data_reference_date_to": "2021-12-31"
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      "data_reference_date_to": "2021-12-31"
            
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    }
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    }
            
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  ],
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  ],
            
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  "data_structure_category": "semi-structured",
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  "data_structure_category": "semi-structured",
            
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  "dataset_language": "English",
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  "dataset_language": "English",
            
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  "dataset_license_url": 
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  "dataset_license_url": 
            
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"https://creativecommons.org/licenses/by-sa/4.0/",
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"https://creativecommons.org/licenses/by-sa/4.0/",
            
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  "did_author_or_contact_organization_collect_the_data": "true",
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  "did_author_or_contact_organization_collect_the_data": "true",
            
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  "email": "vanderLaanM@arc.agric.za",
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  "email": "vanderLaanM@arc.agric.za",
            
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  "groups": [],
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  "groups": [],
            
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  "id": "80d05bc9-e67b-4341-9843-5889d69f4d6e",
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  "id": "80d05bc9-e67b-4341-9843-5889d69f4d6e",
            
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  "isopen": false,
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  "isopen": false,
            
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  "keywords": "Independent cultivation classification, Integrated 
54
  "keywords": "Independent cultivation classification, Integrated 
            
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water use management, Google Earth Engine, South Africa",
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water use management, Google Earth Engine, South Africa",
            
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  "license": "Open (Creative Commons)",
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  "license": "Open (Creative Commons)",
            
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  "license_id": null,
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  "license_id": null,
            
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  "license_title": null,
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  "license_title": null,
            
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  "maintainer": null,
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  "maintainer": null,
            
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  "maintainer_email": null,
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  "maintainer_email": null,
            
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  "metadata_created": "2026-02-25T09:30:03.495842",
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  "metadata_created": "2026-02-25T09:30:03.495842",
            
n
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  "metadata_modified": "2026-02-25T09:31:29.444989",
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  "metadata_modified": "2026-02-25T09:31:30.154236",
            
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  "minimum_maximum_extent": [
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  "minimum_maximum_extent": [
            
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    {
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    {
            
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      "maximum_vertical_extent": "1592",
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      "maximum_vertical_extent": "1592",
            
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      "minimum_vertical_extent": "1560"
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      "minimum_vertical_extent": "1560"
            
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    }
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    }
            
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  ],
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  ],
            
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  "name": 
69
  "name": 
            
70
a-surface-flux-and-groundwater-storage-change-steenkoppies-2018-2021",
70
a-surface-flux-and-groundwater-storage-change-steenkoppies-2018-2021",
            
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  "notes": "A set of remotely sensed and derived monthly data products 
71
  "notes": "A set of remotely sensed and derived monthly data products 
            
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was compiled and analysed for the Steenkoppies Dolomitic Compartment 
72
was compiled and analysed for the Steenkoppies Dolomitic Compartment 
            
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(South Africa) to enable near real-time monitoring of irrigated 
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(South Africa) to enable near real-time monitoring of irrigated 
            
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cultivation and aquifer stress. Monthly actively cultivated areas were 
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cultivation and aquifer stress. Monthly actively cultivated areas were 
            
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identified from Sentinel\u20112 imagery using an independently trained 
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identified from Sentinel\u20112 imagery using an independently trained 
            
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Random Forest classifier on seasonal median composites that captured 
76
Random Forest classifier on seasonal median composites that captured 
            
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crop phenological changes. The cultivated-area outputs were integrated 
77
crop phenological changes. The cultivated-area outputs were integrated 
            
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with WaPOR actual evapotranspiration (ETa) data to estimate monthly 
78
with WaPOR actual evapotranspiration (ETa) data to estimate monthly 
            
79
crop water use at 250 m resolution, while monthly precipitation from 
79
crop water use at 250 m resolution, while monthly precipitation from 
            
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CHIRPS was aligned and resampled to the same reference system. Monthly 
80
CHIRPS was aligned and resampled to the same reference system. Monthly 
            
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net irrigation water use was estimated as ETa minus precipitation 
81
net irrigation water use was estimated as ETa minus precipitation 
            
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(with negative values set to zero to indicate no irrigation 
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(with negative values set to zero to indicate no irrigation 
            
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requirement), and monthly surface water flux was estimated as 
83
requirement), and monthly surface water flux was estimated as 
            
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precipitation minus ETa. Net groundwater storage change was estimated 
84
precipitation minus ETa. Net groundwater storage change was estimated 
            
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by combining downscaled GLDAS groundwater storage anomaly changes with 
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by combining downscaled GLDAS groundwater storage anomaly changes with 
            
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irrigated areas, enabling comparison of surface water flux with 
86
irrigated areas, enabling comparison of surface water flux with 
            
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groundwater storage dynamics. The outputs were used to quantify 
87
groundwater storage dynamics. The outputs were used to quantify 
            
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changes in irrigated cropped area and to examine seasonal patterns 
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changes in irrigated cropped area and to examine seasonal patterns 
            
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showing that irrigation demand and groundwater abstraction peaks 
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showing that irrigation demand and groundwater abstraction peaks 
            
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coincided with low precipitation periods, while precipitation was the 
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coincided with low precipitation periods, while precipitation was the 
            
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primary aquifer recharge source. The complete Google Earth Engine 
91
primary aquifer recharge source. The complete Google Earth Engine 
            
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scripts (including datasets) were provided as part of the 
92
scripts (including datasets) were provided as part of the 
            
93
manuscript.",
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manuscript.",
            
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  "num_resources": 1,
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  "num_resources": 1,
            
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  "num_tags": 0,
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  "num_tags": 0,
            
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  "organization": {
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  "organization": {
            
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    "approval_status": "approved",
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    "approval_status": "approved",
            
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    "created": "2025-11-12T19:07:25.734791",
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    "created": "2025-11-12T19:07:25.734791",
            
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    "description": "The Agricultural Research Council is a premier 
99
    "description": "The Agricultural Research Council is a premier 
            
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science institution that conducts research with partners, develops 
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science institution that conducts research with partners, develops 
            
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human capital and fosters innovation to support and develop the 
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human capital and fosters innovation to support and develop the 
            
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agricultural sector. ",
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agricultural sector. ",
            
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    "id": "83b40f98-af75-4fd2-9a27-9ef7295092b2",
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    "id": "83b40f98-af75-4fd2-9a27-9ef7295092b2",
            
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    "image_url": "2025-11-12-190725.707868ARC-logo.jpg",
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    "image_url": "2025-11-12-190725.707868ARC-logo.jpg",
            
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    "is_organization": true,
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    "is_organization": true,
            
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    "name": "agricultural-research-council",
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    "name": "agricultural-research-council",
            
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    "state": "active",
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    "state": "active",
            
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    "title": "Agricultural Research Council",
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    "title": "Agricultural Research Council",
            
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    "type": "organization"
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    "type": "organization"
            
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  },
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  },
            
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  "owner_org": "83b40f98-af75-4fd2-9a27-9ef7295092b2",
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  "owner_org": "83b40f98-af75-4fd2-9a27-9ef7295092b2",
            
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  "private": false,
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  "private": false,
            
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  "publication_date": "2025-06-07",
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  "publication_date": "2025-06-07",
            
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  "publisher": "Agricultural Water Management (Elsevier)",
114
  "publisher": "Agricultural Water Management (Elsevier)",
            
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  "relationships_as_object": [],
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  "relationships_as_object": [],
            
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  "relationships_as_subject": [],
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  "relationships_as_subject": [],
            
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  "resources": [
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  "resources": [
            
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    {
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    {
            
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      "cache_last_updated": null,
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      "cache_last_updated": null,
            
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      "cache_url": null,
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      "cache_url": null,
            
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      "created": "2026-02-25T09:31:29.472686",
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      "created": "2026-02-25T09:31:29.472686",
            
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      "dataset_description": "Google Earth Engine script used to model 
122
      "dataset_description": "Google Earth Engine script used to model 
            
123
water fluxes at a monthly time-step.",
123
water fluxes at a monthly time-step.",
            
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      "description": null,
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      "description": null,
            
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      "format": "txt",
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      "format": "txt",
            
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      "hash": "",
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      "hash": "",
            
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      "id": "9e4e8775-3fd7-4508-a43a-b9edeb905d61",
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      "id": "9e4e8775-3fd7-4508-a43a-b9edeb905d61",
            
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      "is_data_supplementary": "False",
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      "is_data_supplementary": "False",
            
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      "last_modified": "2026-02-25T09:31:29.429940",
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      "last_modified": "2026-02-25T09:31:29.429940",
            
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      "metadata_modified": "2026-02-25T09:31:29.466890",
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      "metadata_modified": "2026-02-25T09:31:29.466890",
            
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      "mimetype": "text/plain",
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      "mimetype": "text/plain",
            
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      "mimetype_inner": null,
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      "mimetype_inner": null,
            
133
      "name": "MONTHLY CROP WATER AND IRRIGATION WATER USE ACROSS 
133
      "name": "MONTHLY CROP WATER AND IRRIGATION WATER USE ACROSS 
            
134
CROPLAND.txt",
134
CROPLAND.txt",
            
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      "package_id": "80d05bc9-e67b-4341-9843-5889d69f4d6e",
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      "package_id": "80d05bc9-e67b-4341-9843-5889d69f4d6e",
            
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      "position": 0,
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      "position": 0,
            
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      "resource_name": "Monthly water flux GEE script",
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      "resource_name": "Monthly water flux GEE script",
            
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      "resource_type": null,
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      "resource_type": null,
            
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      "size": 22188,
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      "size": 22188,
            
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      "state": "active",
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      "state": "active",
            
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      "url": 
141
      "url": 
            
142
load/monthly-crop-water-and-irrigation-water-use-across-cropland.txt",
142
load/monthly-crop-water-and-irrigation-water-use-across-cropland.txt",
            
143
      "url_type": "upload",
143
      "url_type": "upload",
            
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      "zipped_file": "False"
144
      "zipped_file": "False"
            
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    }
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    }
            
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  ],
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  ],
            
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t
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  "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[16.4699, 
            
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-22.1265], [32.8931, -22.1265], [32.8931, -34.8212], [16.4699, 
            
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-34.8212], [16.4699, -22.1265]]]}",
            
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  "state": "draft",
150
  "state": "active",
            
148
  "tags": [],
151
  "tags": [],
            
149
  "title": "Monthly irrigation, ETa, surface flux and groundwater 
152
  "title": "Monthly irrigation, ETa, surface flux and groundwater 
            
150
storage change: Steenkoppies (2018\u20132021)",
153
storage change: Steenkoppies (2018\u20132021)",
            
151
  "type": "dataset",
154
  "type": "dataset",
            
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  "uploader_estimation_of_extent_of_processing": "raw",
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  "uploader_estimation_of_extent_of_processing": "raw",
            
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  "url": null,
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  "url": null,
            
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  "version": null,
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  "version": null,
            
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  "vertical_extent_datum": "masl",
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  "vertical_extent_datum": "masl",
            
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  "wrc_project_number": "C2020/2021\u201300440",
159
  "wrc_project_number": "C2020/2021\u201300440",
            
157
  "wro_theme": "agriculture"
160
  "wro_theme": "agriculture"
            
158
}
161
}