RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA

Mahlatse Kganyago; Mxolisi B. Mukhawana; Morwapula Mashalane; Aphelele Mgabisa; Simon Moloele

doi:10.1109/IGARSS47720.2021.9554117

RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA

Mahlatse Kganyago, Mxolisi B. Mukhawana, Morwapula Mashalane, Aphelele Mgabisa, Simon Moloele

Research output: Contribution to conference › Paper › peer-review

4 Citations (Scopus)

Abstract

The frequency, intensity and longevity of droughts is a major concern globally for multiple sectors, as they compromise water and food security and other socioeconomic imperatives. We assessed and compared recent drought trends with various indices (i.e., Standardised Precipitation Index-SPI, Palmer-Drought Index-PDSI, and Vegetation Condition Index-VCI) and hydrological parameters using linear regression (LR) trend analysis and Mann-Kendall (MK) Trend Test. The results showed that PDSI, SPI-12 and VCI were more consistent (r > 0.5), thus showed the greatest potential for integration, to characterise hydrological and agroecological drought. Moreover, all drought indices showed significantly worsening drought conditions (p < 0.005) in Western Cape province of South Africa. This study showed the potential of intergrating in-situ and satellite-based indices for assessing drought, significant for developing multi-index, multi-scale drought monitoing system.

Original language	English
Pages	6225-6228
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS47720.2021.9554117
Publication status	Published - 2021
Externally published	Yes
Event	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: 12 Jul 2021 → 16 Jul 2021

Conference

Conference	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/Territory	Belgium
City	Brussels
Period	12/07/21 → 16/07/21

Keywords

Drought
PDSI
SPI
VCI
Western Cape

ASJC Scopus subject areas

Computer Science Applications
General Earth and Planetary Sciences

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/IGARSS47720.2021.9554117

Cite this

Kganyago, M., Mukhawana, M. B., Mashalane, M., Mgabisa, A., & Moloele, S. (2021). RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA. 6225-6228. Paper presented at 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium. https://doi.org/10.1109/IGARSS47720.2021.9554117

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title = "RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA",

abstract = "The frequency, intensity and longevity of droughts is a major concern globally for multiple sectors, as they compromise water and food security and other socioeconomic imperatives. We assessed and compared recent drought trends with various indices (i.e., Standardised Precipitation Index-SPI, Palmer-Drought Index-PDSI, and Vegetation Condition Index-VCI) and hydrological parameters using linear regression (LR) trend analysis and Mann-Kendall (MK) Trend Test. The results showed that PDSI, SPI-12 and VCI were more consistent (r > 0.5), thus showed the greatest potential for integration, to characterise hydrological and agroecological drought. Moreover, all drought indices showed significantly worsening drought conditions (p < 0.005) in Western Cape province of South Africa. This study showed the potential of intergrating in-situ and satellite-based indices for assessing drought, significant for developing multi-index, multi-scale drought monitoing system.",

keywords = "Drought, PDSI, SPI, VCI, Western Cape",

author = "Mahlatse Kganyago and Mukhawana, {Mxolisi B.} and Morwapula Mashalane and Aphelele Mgabisa and Simon Moloele",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE; 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 ; Conference date: 12-07-2021 Through 16-07-2021",

year = "2021",

doi = "10.1109/IGARSS47720.2021.9554117",

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Kganyago, M, Mukhawana, MB, Mashalane, M, Mgabisa, A & Moloele, S 2021, 'RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA', Paper presented at 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium, 12/07/21 - 16/07/21 pp. 6225-6228. https://doi.org/10.1109/IGARSS47720.2021.9554117

RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA. / Kganyago, Mahlatse; Mukhawana, Mxolisi B.; Mashalane, Morwapula et al.
2021. 6225-6228 Paper presented at 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES

T2 - 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021

AU - Kganyago, Mahlatse

AU - Mukhawana, Mxolisi B.

AU - Mashalane, Morwapula

AU - Mgabisa, Aphelele

AU - Moloele, Simon

PY - 2021

Y1 - 2021

N2 - The frequency, intensity and longevity of droughts is a major concern globally for multiple sectors, as they compromise water and food security and other socioeconomic imperatives. We assessed and compared recent drought trends with various indices (i.e., Standardised Precipitation Index-SPI, Palmer-Drought Index-PDSI, and Vegetation Condition Index-VCI) and hydrological parameters using linear regression (LR) trend analysis and Mann-Kendall (MK) Trend Test. The results showed that PDSI, SPI-12 and VCI were more consistent (r > 0.5), thus showed the greatest potential for integration, to characterise hydrological and agroecological drought. Moreover, all drought indices showed significantly worsening drought conditions (p < 0.005) in Western Cape province of South Africa. This study showed the potential of intergrating in-situ and satellite-based indices for assessing drought, significant for developing multi-index, multi-scale drought monitoing system.

AB - The frequency, intensity and longevity of droughts is a major concern globally for multiple sectors, as they compromise water and food security and other socioeconomic imperatives. We assessed and compared recent drought trends with various indices (i.e., Standardised Precipitation Index-SPI, Palmer-Drought Index-PDSI, and Vegetation Condition Index-VCI) and hydrological parameters using linear regression (LR) trend analysis and Mann-Kendall (MK) Trend Test. The results showed that PDSI, SPI-12 and VCI were more consistent (r > 0.5), thus showed the greatest potential for integration, to characterise hydrological and agroecological drought. Moreover, all drought indices showed significantly worsening drought conditions (p < 0.005) in Western Cape province of South Africa. This study showed the potential of intergrating in-situ and satellite-based indices for assessing drought, significant for developing multi-index, multi-scale drought monitoing system.

KW - Drought

KW - PDSI

KW - SPI

KW - VCI

KW - Western Cape

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U2 - 10.1109/IGARSS47720.2021.9554117

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M3 - Paper

AN - SCOPUS:85129802899

SP - 6225

EP - 6228

Y2 - 12 July 2021 through 16 July 2021

ER -

RECENT TRENDS OF DROUGHT USING REMOTELY SENSED AND IN-SITU INDICES: TOWARDS AN INTEGRATED DROUGHT MONITORING SYSTEM FOR SOUTH AFRICA

Abstract

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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