Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania

Tunde Olarinoye; Jan Willem Foppen; William Veerbeek; Tlhoriso Morienyane; Hans Komakech

doi:10.1080/02508060.2020.1768724

Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania

Tunde Olarinoye, Jan Willem Foppen^*, William Veerbeek, Tlhoriso Morienyane, Hans Komakech

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

9 Citations (Scopus)

Abstract

We combine satellite imagery, urban growth modelling, groundwater modelling and hydrogeological field expeditions to estimate the potential impacts in 2050 of rapid urbanization and climate change on groundwater in Arusha, Tanzania, and by extension similar areas in Sub-Saharan Africa. Our analysis suggests that a reduction of groundwater recharge by 30–44% will cause groundwater levels to drop by up to 75 m, mainly due to increased evapotranspiration and to an expansion in paved surface. If this scenario becomes reality, we predict that wells will run dry, creating health, social and environmental risks.

Original language	English
Pages (from-to)	497-511
Number of pages	15
Journal	Water International
Volume	45
Issue number	5
DOIs	https://doi.org/10.1080/02508060.2020.1768724
Publication status	Published - 2020
Externally published	Yes

Keywords

climate change
recharge
Tanzania
Urbanization

UN SDGs

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

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10.1080/02508060.2020.1768724

Cite this

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title = "Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania",

abstract = "We combine satellite imagery, urban growth modelling, groundwater modelling and hydrogeological field expeditions to estimate the potential impacts in 2050 of rapid urbanization and climate change on groundwater in Arusha, Tanzania, and by extension similar areas in Sub-Saharan Africa. Our analysis suggests that a reduction of groundwater recharge by 30–44% will cause groundwater levels to drop by up to 75 m, mainly due to increased evapotranspiration and to an expansion in paved surface. If this scenario becomes reality, we predict that wells will run dry, creating health, social and environmental risks.",

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T1 - Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania

AU - Olarinoye, Tunde

AU - Foppen, Jan Willem

AU - Veerbeek, William

AU - Morienyane, Tlhoriso

AU - Komakech, Hans

PY - 2020

Y1 - 2020

N2 - We combine satellite imagery, urban growth modelling, groundwater modelling and hydrogeological field expeditions to estimate the potential impacts in 2050 of rapid urbanization and climate change on groundwater in Arusha, Tanzania, and by extension similar areas in Sub-Saharan Africa. Our analysis suggests that a reduction of groundwater recharge by 30–44% will cause groundwater levels to drop by up to 75 m, mainly due to increased evapotranspiration and to an expansion in paved surface. If this scenario becomes reality, we predict that wells will run dry, creating health, social and environmental risks.

AB - We combine satellite imagery, urban growth modelling, groundwater modelling and hydrogeological field expeditions to estimate the potential impacts in 2050 of rapid urbanization and climate change on groundwater in Arusha, Tanzania, and by extension similar areas in Sub-Saharan Africa. Our analysis suggests that a reduction of groundwater recharge by 30–44% will cause groundwater levels to drop by up to 75 m, mainly due to increased evapotranspiration and to an expansion in paved surface. If this scenario becomes reality, we predict that wells will run dry, creating health, social and environmental risks.

KW - climate change

KW - recharge

KW - Tanzania

KW - Urbanization

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DO - 10.1080/02508060.2020.1768724

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SN - 0250-8060

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SP - 497

EP - 511

JO - Water International

JF - Water International

IS - 5

ER -

Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania

Abstract

Keywords

UN SDGs

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