Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin:
This study aims at improving the hydrological process understanding of the semi-arid and transboundary Incomati river basin to enable better water management. Comprehensive statistical and trend analysis of rainfall and streamflow were conducted, and the Indicators of Hydrological Alteration tool wa...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
Leiden, Netherlands
CRC Press
2019
|
| Schriftenreihe: | IHE Delft PhD Thesis Series
|
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Zusammenfassung: | This study aims at improving the hydrological process understanding of the semi-arid and transboundary Incomati river basin to enable better water management. Comprehensive statistical and trend analysis of rainfall and streamflow were conducted, and the Indicators of Hydrological Alteration tool was deployed to describe the streamflow regime and trends over time. Land use and land cover change, particularly the conversion of natural vegetation into forest plantation, the expansion of irrigated agriculture and the flow regulation due to dam operation were identified as critical drivers of flow regime alteration. Hydrograph separation using long-term hydrochemical data at seasonal scale, and hydrochemical and isotope data at event scale were performed to quantify runoff components. A novel methodology to calibrate recursive digital filters using routinely collected water quality data was developed and tested in the catchment. This method allows for estimation of daily baseflow from readily available daily streamflow data. Dominant runoff generation zones were mapped using the Height Above Nearest Drainage approach. The hydrological model STREAM was then employed, informed by the runoff generation zones mapping and the process understanding gained in the catchment, as well as remote sensing data. The study provides the basis for better operational water management in the catchment |
| Beschreibung: | OCLC-licensed vendor bibliographic record |
| Beschreibung: | 1 online resource (xxvi, 218 pages) |
| ISBN: | 9780429299537 0429299532 9781000044027 1000044025 9781000034349 1000034348 9781000039184 1000039188 |
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Datensatz im Suchindex
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| dewey-full | 551.48 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 551 - Geology, hydrology, meteorology |
| dewey-raw | 551.48 |
| dewey-search | 551.48 |
| dewey-sort | 3551.48 |
| dewey-tens | 550 - Earth sciences |
| discipline | Geologie / Paläontologie |
| discipline_str_mv | Geologie / Paläontologie |
| format | Electronic eBook |
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| id | DE-604.BV046620681 |
| illustrated | Not Illustrated |
| index_date | 2024-07-03T14:08:06Z |
| indexdate | 2024-07-10T08:49:27Z |
| institution | BVB |
| isbn | 9780429299537 0429299532 9781000044027 1000044025 9781000034349 1000034348 9781000039184 1000039188 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-032032413 |
| open_access_boolean | |
| physical | 1 online resource (xxvi, 218 pages) |
| psigel | ZDB-7-TFC |
| publishDate | 2019 |
| publishDateSearch | 2019 |
| publishDateSort | 2019 |
| publisher | CRC Press |
| record_format | marc |
| series2 | IHE Delft PhD Thesis Series |
| spelling | Okello, Aline Marachi Lopes Saraiva Verfasser aut Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin by Aline Maraci Lopes Saraiva Okello Leiden, Netherlands CRC Press 2019 1 online resource (xxvi, 218 pages) txt rdacontent c rdamedia cr rdacarrier IHE Delft PhD Thesis Series OCLC-licensed vendor bibliographic record This study aims at improving the hydrological process understanding of the semi-arid and transboundary Incomati river basin to enable better water management. Comprehensive statistical and trend analysis of rainfall and streamflow were conducted, and the Indicators of Hydrological Alteration tool was deployed to describe the streamflow regime and trends over time. Land use and land cover change, particularly the conversion of natural vegetation into forest plantation, the expansion of irrigated agriculture and the flow regulation due to dam operation were identified as critical drivers of flow regime alteration. Hydrograph separation using long-term hydrochemical data at seasonal scale, and hydrochemical and isotope data at event scale were performed to quantify runoff components. A novel methodology to calibrate recursive digital filters using routinely collected water quality data was developed and tested in the catchment. This method allows for estimation of daily baseflow from readily available daily streamflow data. Dominant runoff generation zones were mapped using the Height Above Nearest Drainage approach. The hydrological model STREAM was then employed, informed by the runoff generation zones mapping and the process understanding gained in the catchment, as well as remote sensing data. The study provides the basis for better operational water management in the catchment SCIENCE / Environmental Science bisacsh TECHNOLOGY / Engineering / Civil bisacsh Hydrology https://www.taylorfrancis.com/books/9780429299537 Verlag URL des Erstveröffentlichers Volltext |
| spellingShingle | Okello, Aline Marachi Lopes Saraiva Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin SCIENCE / Environmental Science bisacsh TECHNOLOGY / Engineering / Civil bisacsh Hydrology |
| title | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin |
| title_auth | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin |
| title_exact_search | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin |
| title_exact_search_txtP | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin |
| title_full | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin by Aline Maraci Lopes Saraiva Okello |
| title_fullStr | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin by Aline Maraci Lopes Saraiva Okello |
| title_full_unstemmed | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin by Aline Maraci Lopes Saraiva Okello |
| title_short | Improved hydrological understanding of a semi-arid subtropical transboundary basin using multiple techniques -- The Incomati River Basin |
| title_sort | improved hydrological understanding of a semi arid subtropical transboundary basin using multiple techniques the incomati river basin |
| topic | SCIENCE / Environmental Science bisacsh TECHNOLOGY / Engineering / Civil bisacsh Hydrology |
| topic_facet | SCIENCE / Environmental Science TECHNOLOGY / Engineering / Civil Hydrology |
| url | https://www.taylorfrancis.com/books/9780429299537 |
| work_keys_str_mv | AT okelloalinemarachilopessaraiva improvedhydrologicalunderstandingofasemiaridsubtropicaltransboundarybasinusingmultipletechniquestheincomatiriverbasin |