Aldaketak

              
    

          
          
        
        

            
f
1
{
f
1
{
            
2
  "agreement": "true",
2
  "agreement": "true",
            
3
  "alternative_identifier": "ResearchGate publication ID: 328838640",
3
  "alternative_identifier": "ResearchGate publication ID: 328838640",
            
4
  "author": null,
4
  "author": null,
            
5
  "author_email": null,
5
  "author_email": null,
            
6
  "authors": [
6
  "authors": [
            
7
    {
7
    {
            
8
      "author_department": "Institute for Water and Environmental 
8
      "author_department": "Institute for Water and Environmental 
            
9
Engineering, Department of Civil Engineering",
9
Engineering, Department of Civil Engineering",
            
10
      "author_email": "atheron1@csir.co.za",
10
      "author_email": "atheron1@csir.co.za",
            
11
      "author_name": "Andre K.",
11
      "author_name": "Andre K.",
            
12
      "author_organization": "Stellenbosch University",
12
      "author_organization": "Stellenbosch University",
            
13
      "author_surname": "Theron",
13
      "author_surname": "Theron",
            
14
      "contact_same_as_author": "True"
14
      "contact_same_as_author": "True"
            
15
    },
15
    },
            
16
    {
16
    {
            
17
      "author_department": "Institute for Water and Environmental 
17
      "author_department": "Institute for Water and Environmental 
            
18
Engineering, Department of Civil Engineering",
18
Engineering, Department of Civil Engineering",
            
19
      "author_email": "",
19
      "author_email": "",
            
20
      "author_name": "Gerrit R.",
20
      "author_name": "Gerrit R.",
            
21
      "author_organization": "Stellenbosch University",
21
      "author_organization": "Stellenbosch University",
            
22
      "author_surname": "Basson"
22
      "author_surname": "Basson"
            
23
    }
23
    }
            
24
  ],
24
  ],
            
25
  "citation_title": "Theron, A.K., & Basson, G.R. (2018). Reservoir 
25
  "citation_title": "Theron, A.K., & Basson, G.R. (2018). Reservoir 
            
26
sedimentation and potential impact of the proposed Smithfield Dam on 
26
sedimentation and potential impact of the proposed Smithfield Dam on 
            
27
the uMkhomazi River on the coastal sediment budget and shoreline 
27
the uMkhomazi River on the coastal sediment budget and shoreline 
            
28
stability. Conference paper, November 2018. Stellenbosch University, 
28
stability. Conference paper, November 2018. Stellenbosch University, 
            
29
South Africa.",
29
South Africa.",
            
30
  "contact_person": [
30
  "contact_person": [
            
31
    {
31
    {
            
32
      "contact_department": "Institute for Water and Environmental 
32
      "contact_department": "Institute for Water and Environmental 
            
33
Engineering, Department of Civil Engineering",
33
Engineering, Department of Civil Engineering",
            
34
      "contact_email": "atheron1@csir.co.za",
34
      "contact_email": "atheron1@csir.co.za",
            
35
      "contact_name": "Andre K.",
35
      "contact_name": "Andre K.",
            
36
      "contact_orgnization": "Stellenbosch University"
36
      "contact_orgnization": "Stellenbosch University"
            
37
    }
37
    }
            
38
  ],
38
  ],
            
39
  "creator_user_id": "fa7af5b8-32a7-4df0-90a7-c49fbefb1fbd",
39
  "creator_user_id": "fa7af5b8-32a7-4df0-90a7-c49fbefb1fbd",
            
40
  "data_classification": "both",
40
  "data_classification": "both",
            
41
  "data_collection_organization": "Stellenbosch University",
41
  "data_collection_organization": "Stellenbosch University",
            
42
  "data_reference_date": [
42
  "data_reference_date": [
            
43
    {
43
    {
            
44
      "data_reference_date_from": "1960-01-01",
44
      "data_reference_date_from": "1960-01-01",
            
45
      "data_reference_date_to": "2014-12-31"
45
      "data_reference_date_to": "2014-12-31"
            
46
    }
46
    }
            
47
  ],
47
  ],
            
48
  "data_structure_category": "semi-structured",
48
  "data_structure_category": "semi-structured",
            
49
  "dataset_language": "English",
49
  "dataset_language": "English",
            
50
  "dataset_license_url": 
50
  "dataset_license_url": 
            
51
"https://creativecommons.org/licenses/by-sa/4.0/",
51
"https://creativecommons.org/licenses/by-sa/4.0/",
            
52
  "did_author_or_contact_organization_collect_the_data": "false",
52
  "did_author_or_contact_organization_collect_the_data": "false",
            
53
  "email": "vanderLaanM@arc.agric.za",
53
  "email": "vanderLaanM@arc.agric.za",
            
54
  "groups": [],
54
  "groups": [],
            
55
  "id": "2e84752c-7fca-4c3a-9c78-303a89945496",
55
  "id": "2e84752c-7fca-4c3a-9c78-303a89945496",
            
56
  "isopen": false,
56
  "isopen": false,
            
57
  "keywords": "reservoir sedimentation, Smithfield Dam, uMkhomazi 
57
  "keywords": "reservoir sedimentation, Smithfield Dam, uMkhomazi 
            
58
River, sediment yield, coastal sediment budget, shoreline stability, 
58
River, sediment yield, coastal sediment budget, shoreline stability, 
            
59
dam impacts, hydrodynamic modelling, sediment transport, sand mining, 
59
dam impacts, hydrodynamic modelling, sediment transport, sand mining, 
            
60
coastal erosion, KwaZulu\u2011Natal",
60
coastal erosion, KwaZulu\u2011Natal",
            
61
  "license": "Open (Creative Commons)",
61
  "license": "Open (Creative Commons)",
            
62
  "license_id": null,
62
  "license_id": null,
            
63
  "license_title": null,
63
  "license_title": null,
            
64
  "maintainer": null,
64
  "maintainer": null,
            
65
  "maintainer_email": null,
65
  "maintainer_email": null,
            
66
  "metadata_created": "2025-10-22T11:52:32.769680",
66
  "metadata_created": "2025-10-22T11:52:32.769680",
            
n
67
  "metadata_modified": "2026-02-19T09:43:49.833063",
n
67
  "metadata_modified": "2026-02-19T09:44:37.713473",
            
68
  "minimum_maximum_extent": [
68
  "minimum_maximum_extent": [
            
69
    {
69
    {
            
70
      "maximum_vertical_extent": "930",
70
      "maximum_vertical_extent": "930",
            
71
      "minimum_vertical_extent": "855"
71
      "minimum_vertical_extent": "855"
            
72
    }
72
    }
            
73
  ],
73
  ],
            
74
  "name": 
74
  "name": 
            
75
-u22951718-downloads-sancold2018-smithfield-theronandbasson-20-1-pdf",
75
-u22951718-downloads-sancold2018-smithfield-theronandbasson-20-1-pdf",
            
76
  "notes": "This conference paper investigates reservoir sedimentation 
76
  "notes": "This conference paper investigates reservoir sedimentation 
            
77
and downstream coastal impacts associated with the proposed Smithfield 
77
and downstream coastal impacts associated with the proposed Smithfield 
            
78
Dam on the uMkhomazi River, KwaZulu\u2011Natal, South Africa. A review 
78
Dam on the uMkhomazi River, KwaZulu\u2011Natal, South Africa. A review 
            
79
of regional sediment yields was conducted and combined with 
79
of regional sediment yields was conducted and combined with 
            
80
2\u2011dimensional hydrodynamic modelling to simulate reservoir 
80
2\u2011dimensional hydrodynamic modelling to simulate reservoir 
            
81
sedimentation over a 100\u2011year period, indicating potential 
81
sedimentation over a 100\u2011year period, indicating potential 
            
82
storage capacity losses of 36\u201366% depending on future sediment 
82
storage capacity losses of 36\u201366% depending on future sediment 
            
83
yield scenarios.\r\nA 1\u2011dimensional hydrodynamic and sediment 
83
yield scenarios.\r\nA 1\u2011dimensional hydrodynamic and sediment 
            
84
transport model was applied to assess pre\u2011 and post\u2011dam 
84
transport model was applied to assess pre\u2011 and post\u2011dam 
            
85
sediment routing from the dam site to the river mouth. Results show 
85
sediment routing from the dam site to the river mouth. Results show 
            
86
that the dam would trap nearly all coarse sediment, leading to a 
86
that the dam would trap nearly all coarse sediment, leading to a 
            
87
long\u2011term reduction of approximately 74\u202f000\u202ft/a 
87
long\u2011term reduction of approximately 74\u202f000\u202ft/a 
            
88
(\u224821%) in sand delivery to the coast. This reduction corresponds 
88
(\u224821%) in sand delivery to the coast. This reduction corresponds 
            
89
to a 10% decrease in total longshore sediment supply at Durban, with 
89
to a 10% decrease in total longshore sediment supply at Durban, with 
            
90
implications for coastal sediment budgets and shoreline stability 
90
implications for coastal sediment budgets and shoreline stability 
            
91
north of the uMkhomazi River mouth.\r\n\r\nThe study further evaluates 
91
north of the uMkhomazi River mouth.\r\n\r\nThe study further evaluates 
            
92
cumulative impacts of existing sand mining, showing that dam sediment 
92
cumulative impacts of existing sand mining, showing that dam sediment 
            
93
trapping and sand mining would together reduce fluvial sand supply by 
93
trapping and sand mining would together reduce fluvial sand supply by 
            
94
up to 37%. Potential mitigation measures include sediment bypass 
94
up to 37%. Potential mitigation measures include sediment bypass 
            
95
tunnels, improved sand\u2011mining regulation, catchment management, 
95
tunnels, improved sand\u2011mining regulation, catchment management, 
            
96
and targeted beach nourishment. The findings highlight the importance 
96
and targeted beach nourishment. The findings highlight the importance 
            
97
of integrated river\u2013coast sediment management in future dam 
97
of integrated river\u2013coast sediment management in future dam 
            
98
planning.",
98
planning.",
            
99
  "num_resources": 1,
99
  "num_resources": 1,
            
100
  "num_tags": 0,
100
  "num_tags": 0,
            
101
  "organization": {
101
  "organization": {
            
102
    "approval_status": "approved",
102
    "approval_status": "approved",
            
103
    "created": "2026-02-19T09:34:28.202731",
103
    "created": "2026-02-19T09:34:28.202731",
            
104
    "description": "For over a century, SU has been a catalyst for 
104
    "description": "For over a century, SU has been a catalyst for 
            
105
knowledge, innovation and transformation \u2013 serving as a true 
105
knowledge, innovation and transformation \u2013 serving as a true 
            
106
asset to South Africa, the continent and the world. We are committed 
106
asset to South Africa, the continent and the world. We are committed 
            
107
to excellence, inclusivity and collaboration, producing impactful 
107
to excellence, inclusivity and collaboration, producing impactful 
            
108
research and nurturing future-ready graduates equipped to thrive in 
108
research and nurturing future-ready graduates equipped to thrive in 
            
109
their careers, confront complex challenges and drive positive change 
109
their careers, confront complex challenges and drive positive change 
            
110
in society.",
110
in society.",
            
111
    "id": "7e2f9d9b-877f-4b9a-a0b3-6d7b124bb46d",
111
    "id": "7e2f9d9b-877f-4b9a-a0b3-6d7b124bb46d",
            
112
    "image_url": "2026-02-19-093428.185696SUlogo.jpg",
112
    "image_url": "2026-02-19-093428.185696SUlogo.jpg",
            
113
    "is_organization": true,
113
    "is_organization": true,
            
114
    "name": "stellenbosch-university",
114
    "name": "stellenbosch-university",
            
115
    "state": "active",
115
    "state": "active",
            
116
    "title": "Stellenbosch University",
116
    "title": "Stellenbosch University",
            
117
    "type": "organization"
117
    "type": "organization"
            
118
  },
118
  },
            
119
  "owner_org": "7e2f9d9b-877f-4b9a-a0b3-6d7b124bb46d",
119
  "owner_org": "7e2f9d9b-877f-4b9a-a0b3-6d7b124bb46d",
            
120
  "private": false,
120
  "private": false,
            
121
  "publication_date": "2018-11-01",
121
  "publication_date": "2018-11-01",
            
122
  "publisher": "South African National Committee on Large Dams 
122
  "publisher": "South African National Committee on Large Dams 
            
123
(SANCOLD) \u2013 Conference proceedings",
123
(SANCOLD) \u2013 Conference proceedings",
            
124
  "relationships_as_object": [],
124
  "relationships_as_object": [],
            
125
  "relationships_as_subject": [],
125
  "relationships_as_subject": [],
            
126
  "resources": [
126
  "resources": [
            
127
    {
127
    {
            
128
      "cache_last_updated": null,
128
      "cache_last_updated": null,
            
129
      "cache_url": null,
129
      "cache_url": null,
            
130
      "created": "2025-10-22T11:52:33.048585",
130
      "created": "2025-10-22T11:52:33.048585",
            
n
n
131
      "dataset_description": "",
            
131
      "description": null,
132
      "description": null,
            
132
      "format": "pdf",
133
      "format": "pdf",
            
133
      "hash": "",
134
      "hash": "",
            
134
      "id": "8c62b83e-46eb-4273-b8e3-2623f6d50f40",
135
      "id": "8c62b83e-46eb-4273-b8e3-2623f6d50f40",
            
135
      "is_data_supplementary": "False",
136
      "is_data_supplementary": "False",
            
n
136
      "last_modified": "2025-10-22T11:52:33.031495",
n
137
      "last_modified": "2026-02-19T09:44:37.701766",
            
137
      "metadata_modified": "2025-10-22T11:52:33.044213",
138
      "metadata_modified": "2026-02-19T09:44:37.722753",
            
138
      "mimetype": "application/pdf",
139
      "mimetype": "application/pdf",
            
139
      "mimetype_inner": null,
140
      "mimetype_inner": null,
            
n
140
      "name": 
n
141
      "name": "Reservoir Sedimentation and Potential Impact of the 
            
141
hfield_theronandbasson_1_id_06bc6b54-6c17-4e92-9b08-ee295c89a6dd.pdf",
142
Proposed Smithfield Dam on the uMkhomazi River on the Coastal Sediment 
            
143
Budget and Shoreline Stability.pdf",
            
142
      "package_id": "2e84752c-7fca-4c3a-9c78-303a89945496",
144
      "package_id": "2e84752c-7fca-4c3a-9c78-303a89945496",
            
143
      "position": 0,
145
      "position": 0,
            
n
n
146
      "resource_name": "Reservoir Sedimentation and Potential Impact 
            
147
of the Proposed Smithfield Dam on the uMkhomazi River on the Coastal 
            
148
Sediment Budget and Shoreline Stability",
            
144
      "resource_type": null,
149
      "resource_type": null,
            
145
      "size": 1724617,
150
      "size": 1724617,
            
146
      "state": "active",
151
      "state": "active",
            
147
      "url": 
152
      "url": 
            
n
148
hfield_theronandbasson_1_id_06bc6b54-6c17-4e92-9b08-ee295c89a6dd.pdf",
n
153
ntial-impact-of-the-proposed-smithfield-dam-on-the-umkhomazi-riv.pdf",
            
149
      "url_type": "upload",
154
      "url_type": "upload",
            
150
      "zipped_file": "False"
155
      "zipped_file": "False"
            
151
    }
156
    }
            
152
  ],
157
  ],
            
t
153
  "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[16.4699, 
t

            
154
-22.1265], [32.8931, -22.1265], [32.8931, -34.8212], [16.4699, 

            
155
-34.8212], [16.4699, -22.1265]]]}",

            
156
  "state": "active",
158
  "state": "active",
            
157
  "tags": [],
159
  "tags": [],
            
158
  "title": "Reservoir Sedimentation and Potential Impact of the 
160
  "title": "Reservoir Sedimentation and Potential Impact of the 
            
159
Proposed Smithfield Dam on the uMkhomazi River on the Coastal Sediment 
161
Proposed Smithfield Dam on the uMkhomazi River on the Coastal Sediment 
            
160
Budget and Shoreline Stability",
162
Budget and Shoreline Stability",
            
161
  "type": "dataset",
163
  "type": "dataset",
            
162
  "uploader_estimation_of_extent_of_processing": "refined",
164
  "uploader_estimation_of_extent_of_processing": "refined",
            
163
  "url": null,
165
  "url": null,
            
164
  "version": null,
166
  "version": null,
            
165
  "vertical_extent_datum": "masl",
167
  "vertical_extent_datum": "masl",
            
166
  "wrc_project_number": "Not stated ",
168
  "wrc_project_number": "Not stated ",
            
167
  "wro_theme": "agriculture"
169
  "wro_theme": "agriculture"
            
168
}
170
}