---
_id: '12853'
abstract:
- lang: eng
text: Lentic waters integrate atmosphere and catchment processes, and thus ultimately
capture climate signals. However, studies of climate warming effects on lentic
waters usually do not sufficiently account for a change in heat flux from the
catchment through altered inflow temperature and discharge under climate change.
This is particularly relevant for reservoirs, which are highly impacted by catchment
hydrology and may be affected by upstream reservoirs or pre‐dams. This study explicitly
quantified how the catchment and pre‐dams modify the thermal response of Rappbode
Reservoir, Germany's largest drinking water reservoir system, to climate change.
We established a catchment‐lake modeling chain in the main reservoir and its two
pre‐dams utilizing the lake model GOTM, the catchment model mHM, and the stream
temperature model Air2stream, forced by an ensemble of climate projections under
RCP2.6 and 8.5 warming scenarios. Results exhibited a warming of 0.27/0.15°C decade−1
for the surface/bottom temperatures of the main reservoir, with approximately
8%/24% of this warming attributed to the catchment warming, respectively. The
catchment warming amplified the deep water warming more than at the surface, contrary
to the atmospheric warming effect, and advanced stratification by about 1 week,
while having a minor impact on stratification intensity. On the other hand, pre‐dams
reduced the inflow temperature into the main reservoir in spring, and consequently
lowered the hypolimnetic temperature and postponed stratification onset. This
shielded the main reservoir from climate warming, although overall the contribution
of pre‐dams was minimal. Altogether, our study highlights the importance of catchment
alterations and seasonality when projecting reservoir warming, and provides insights
into catchment‐reservoir coupling under climate change.
article_number: e2023WR036808
author:
- first_name: Bo
full_name: Gai, Bo
last_name: Gai
- first_name: Rohini
full_name: Kumar, Rohini
last_name: Kumar
- first_name: Frank
full_name: Hüesker, Frank
last_name: Hüesker
- first_name: Chenxi
full_name: Mi, Chenxi
last_name: Mi
- first_name: Xiangzhen
full_name: Kong, Xiangzhen
last_name: Kong
- first_name: Bertram
full_name: Boehrer, Bertram
last_name: Boehrer
- first_name: Karsten
full_name: Rinke, Karsten
last_name: Rinke
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
citation:
ama: 'Gai B, Kumar R, Hüesker F, et al. Catchments Amplify Reservoir Thermal Response
to Climate Warming. Water resources research : an AGU journal. 2025;61(1).
doi:10.1029/2023wr036808'
apa: 'Gai, B., Kumar, R., Hüesker, F., Mi, C., Kong, X., Boehrer, B., Rinke, K.,
& Shatwell, T. (2025). Catchments Amplify Reservoir Thermal Response to Climate
Warming. Water Resources Research : An AGU Journal, 61(1), Article
e2023WR036808. https://doi.org/10.1029/2023wr036808'
bjps: 'Gai B et al. (2025) Catchments Amplify Reservoir Thermal Response
to Climate Warming. Water resources research : an AGU journal 61.'
chicago: 'Gai, Bo, Rohini Kumar, Frank Hüesker, Chenxi Mi, Xiangzhen Kong, Bertram
Boehrer, Karsten Rinke, and Tom Shatwell. “Catchments Amplify Reservoir Thermal
Response to Climate Warming.” Water Resources Research : An AGU Journal
61, no. 1 (2025). https://doi.org/10.1029/2023wr036808.'
chicago-de: 'Gai, Bo, Rohini Kumar, Frank Hüesker, Chenxi Mi, Xiangzhen Kong, Bertram
Boehrer, Karsten Rinke und Tom Shatwell. 2025. Catchments Amplify Reservoir Thermal
Response to Climate Warming. Water resources research : an AGU journal
61, Nr. 1. doi:10.1029/2023wr036808,
.'
din1505-2-1: 'Gai, Bo ; Kumar,
Rohini ; Hüesker, Frank ;
Mi, Chenxi ; Kong,
Xiangzhen ; Boehrer, Bertram
; Rinke, Karsten ; Shatwell,
Tom: Catchments Amplify Reservoir Thermal Response to Climate Warming.
In: Water resources research : an AGU journal Bd. 61. New York, NY, American
Geophysical Union (AGU) (2025), Nr. 1'
havard: 'B. Gai, R. Kumar, F. Hüesker, C. Mi, X. Kong, B. Boehrer, K. Rinke, T.
Shatwell, Catchments Amplify Reservoir Thermal Response to Climate Warming,
Water Resources Research : An AGU Journal. 61 (2025).'
ieee: 'B. Gai et al., “Catchments Amplify Reservoir Thermal Response to Climate
Warming,” Water resources research : an AGU journal, vol. 61, no. 1,
Art. no. e2023WR036808, 2025, doi: 10.1029/2023wr036808.'
mla: 'Gai, Bo, et al. “Catchments Amplify Reservoir Thermal Response to Climate
Warming.” Water Resources Research : An AGU Journal, vol. 61, no. 1,
e2023WR036808, 2025, https://doi.org/10.1029/2023wr036808.'
short: 'B. Gai, R. Kumar, F. Hüesker, C. Mi, X. Kong, B. Boehrer, K. Rinke, T. Shatwell,
Water Resources Research : An AGU Journal 61 (2025).'
ufg: 'Gai, Bo u. a.: Catchments Amplify Reservoir Thermal Response to Climate
Warming, in: Water resources research : an AGU journal 61 (2025), H.
1.'
van: 'Gai B, Kumar R, Hüesker F, Mi C, Kong X, Boehrer B, et al. Catchments Amplify
Reservoir Thermal Response to Climate Warming. Water resources research : an
AGU journal. 2025;61(1).'
date_created: 2025-04-24T06:22:35Z
date_updated: 2025-06-24T14:14:26Z
department:
- _id: DEP8000
- _id: DEP8022
doi: 10.1029/2023wr036808
external_id:
isi:
- '001390720200001'
intvolume: ' 61'
isi: '1'
issue: '1'
keyword:
- climate change
- coupled catchment-lake model
- thermal characteristics
- drinking water reservoir management
- GOTMstratification
language:
- iso: eng
place: New York, NY
publication: ' Water resources research : an AGU journal'
publication_identifier:
eissn:
- 1944-7973
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union (AGU)
status: public
title: Catchments Amplify Reservoir Thermal Response to Climate Warming
type: scientific_journal_article
user_id: '83781'
volume: 61
year: '2025'
...
---
_id: '12213'
abstract:
- lang: eng
text: Within freshwater networks, lakes and reservoirs are reactors that modify
nutrient dynamics. Their functioning is based on an interplay of hydrological
and biogeochemical processes, rendering them vulnerable to climate change. Future
changes in catchment characteristics are likely to alter the timing and magnitude
of nutrient concentrations in discharge. This study investigated the impact of
changing variability of nutrient concentrations on lake and reservoir dynamics.
We examined intraannual nutrient retention and analyzed the role of reservoirs
in reconfiguring the variability of nutrients. Utilizing the 1D lake model GOTM-WET,
we simulated nutrient processing in a mesotrophic reservoir. Further, we performed
scenario simulations by modifying the variability of inflow nitrogen and phosphorus
concentrations. Our findings indicate that the reservoir removed ∼4% and ∼12%
of total nitrogen (TN) and total phosphorus (TP), respectively. Particulate fractions
were retained efficiently, but there was a net export of dissolved organic fractions.
Regarding mixing and stratification periods, however, we observed net nitrogen
export during stratification in certain years. During stratification, outflow
concentration variability remained relatively unchanged for TN and TP compared
to inflow concentrations. Conversely, phosphate and nitrate concentration variability
increased in the outflow because of in-lake assimilation and the influence of
hydrological events. With increasing inflow concentration variability during stratification,
there was decreased removal of TN and TP by the reservoir, but increased variability
of concentration. By evaluating the lake's capacity to attenuate variability of
nutrient inflows under altered conditions, there are opportunities to improve
monitoring of nutrient export and evaluate the potential impact of nutrient peaks
on downstream drinking water resources and ecosystems.
author:
- first_name: Maria
full_name: Determann, Maria
last_name: Determann
- first_name: Andreas
full_name: Musolff, Andreas
last_name: Musolff
- first_name: Marieke A.
full_name: Frassl, Marieke A.
last_name: Frassl
- first_name: Karsten
full_name: Rinke, Karsten
last_name: Rinke
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
citation:
ama: 'Determann M, Musolff A, Frassl MA, Rinke K, Shatwell T. Nutrient retention
in a small reservoir under changed variability of inflow nutrient concentration.
Inland waters : journal of the International Society of Limnology. 2024;13(4):560-575.
doi:10.1080/20442041.2024.2305105'
apa: 'Determann, M., Musolff, A., Frassl, M. A., Rinke, K., & Shatwell, T. (2024).
Nutrient retention in a small reservoir under changed variability of inflow nutrient
concentration. Inland Waters : Journal of the International Society of Limnology,
13(4), 560–575. https://doi.org/10.1080/20442041.2024.2305105'
bjps: 'Determann M et al. (2024) Nutrient Retention in a Small Reservoir
under Changed Variability of Inflow Nutrient Concentration. Inland waters :
journal of the International Society of Limnology 13, 560–575.'
chicago: 'Determann, Maria, Andreas Musolff, Marieke A. Frassl, Karsten Rinke, and
Tom Shatwell. “Nutrient Retention in a Small Reservoir under Changed Variability
of Inflow Nutrient Concentration.” Inland Waters : Journal of the International
Society of Limnology 13, no. 4 (2024): 560–75. https://doi.org/10.1080/20442041.2024.2305105.'
chicago-de: 'Determann, Maria, Andreas Musolff, Marieke A. Frassl, Karsten Rinke
und Tom Shatwell. 2024. Nutrient retention in a small reservoir under changed
variability of inflow nutrient concentration. Inland waters : journal of the
International Society of Limnology 13, Nr. 4: 560–575. doi:10.1080/20442041.2024.2305105,
.'
din1505-2-1: 'Determann, Maria ; Musolff, Andreas ; Frassl,
Marieke A. ; Rinke, Karsten
; Shatwell, Tom: Nutrient retention
in a small reservoir under changed variability of inflow nutrient concentration.
In: Inland waters : journal of the International Society of Limnology Bd.
13. Ambleside , Freshwater Biological Association (2024), Nr. 4, S. 560–575'
havard: 'M. Determann, A. Musolff, M.A. Frassl, K. Rinke, T. Shatwell, Nutrient
retention in a small reservoir under changed variability of inflow nutrient concentration,
Inland Waters : Journal of the International Society of Limnology. 13 (2024) 560–575.'
ieee: 'M. Determann, A. Musolff, M. A. Frassl, K. Rinke, and T. Shatwell, “Nutrient
retention in a small reservoir under changed variability of inflow nutrient concentration,”
Inland waters : journal of the International Society of Limnology, vol.
13, no. 4, pp. 560–575, 2024, doi: 10.1080/20442041.2024.2305105.'
mla: 'Determann, Maria, et al. “Nutrient Retention in a Small Reservoir under Changed
Variability of Inflow Nutrient Concentration.” Inland Waters : Journal of the
International Society of Limnology, vol. 13, no. 4, 2024, pp. 560–75, https://doi.org/10.1080/20442041.2024.2305105.'
short: 'M. Determann, A. Musolff, M.A. Frassl, K. Rinke, T. Shatwell, Inland Waters :
Journal of the International Society of Limnology 13 (2024) 560–575.'
ufg: 'Determann, Maria u. a.: Nutrient retention in a small reservoir under
changed variability of inflow nutrient concentration, in: Inland waters : journal
of the International Society of Limnology 13 (2024), H. 4, S. 560–575.'
van: 'Determann M, Musolff A, Frassl MA, Rinke K, Shatwell T. Nutrient retention
in a small reservoir under changed variability of inflow nutrient concentration.
Inland waters : journal of the International Society of Limnology. 2024;13(4):560–75.'
date_created: 2024-12-08T19:40:16Z
date_updated: 2024-12-11T13:57:10Z
department:
- _id: DEP8022
doi: 10.1080/20442041.2024.2305105
extern: '1'
intvolume: ' 13'
issue: '4'
keyword:
- catchment–lake interaction
- concentration variability
- GOTM-WET
- lake nutrient export
- reservoir biogeochemistry
language:
- iso: eng
page: 560-575
place: 'Ambleside '
publication: 'Inland waters : journal of the International Society of Limnology'
publication_identifier:
eissn:
- 2044-205X
issn:
- 2044-2041
publication_status: published
publisher: Freshwater Biological Association
quality_controlled: '1'
status: public
title: Nutrient retention in a small reservoir under changed variability of inflow
nutrient concentration
type: scientific_journal_article
user_id: '83781'
volume: 13
year: '2024'
...
---
_id: '12214'
abstract:
- lang: eng
text: A precise understanding of the mechanisms causing phytoplankton blooms in
reservoirs is still lacking, especially in large riverine reservoirs. To better
understand these blooms, the role of the complex hydrodynamics caused by dam operation
must be quantified. Here we examine how synergistic hydrodynamic processes, rather
than individual metrics, trigger blooms in Xiangxi Bay, a typical tributary bay
of the Three Gorges Reservoir, China. We used a 3D ecological-hydrodynamic model,
which integrated hydrodynamics with the abiotic factors that limit phytoplankton
growth to simulate one whole year (2010). By implementing a scaling criterion,
we quantified the contribution of local phytoplankton growth and hydrodynamic
processes, including advection transport and vertical mixing, on bloom dynamics.
Results indicated vertical mixing was the main process inhibiting blooms in colder
months (from October to February) but horizontal advection, which flushed and
diluted blooms, was dominant in warmer months (from May to July) when stratification
was intense and nutrients were replete. Accordingly, blooms occurred when both
vertical mixing and horizontal advection were low. We suggested a potential dam
operation strategy to mitigate blooms during stratification, which involves withdrawing
the warm surface water from upstream reservoirs to increase horizontal flows in
the surface layer. Extending the application of critical turbulence model, our
study shows how vertical mixing and horizontal advection rate interact with phytoplankton
growth rate to drive blooms in highly dynamic riverine systems.
article_number: '130430'
author:
- first_name: Bo
full_name: Gai, Bo
last_name: Gai
- first_name: Jian
full_name: Sun, Jian
last_name: Sun
- first_name: Binliang
full_name: Lin, Binliang
last_name: Lin
- first_name: Yuanyi
full_name: Li, Yuanyi
last_name: Li
- first_name: Chenxi
full_name: Mi, Chenxi
last_name: Mi
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
citation:
ama: Gai B, Sun J, Lin B, Li Y, Mi C, Shatwell T. Vertical mixing and horizontal
transport unravel phytoplankton blooms in a large riverine reservoir. Journal
of Hydrology. 2023;627(B). doi:10.1016/j.jhydrol.2023.130430
apa: Gai, B., Sun, J., Lin, B., Li, Y., Mi, C., & Shatwell, T. (2023). Vertical
mixing and horizontal transport unravel phytoplankton blooms in a large riverine
reservoir. Journal of Hydrology, 627(B), Article 130430. https://doi.org/10.1016/j.jhydrol.2023.130430
bjps: Gai B et al. (2023) Vertical Mixing and Horizontal Transport
Unravel Phytoplankton Blooms in a Large Riverine Reservoir. Journal of Hydrology
627.
chicago: Gai, Bo, Jian Sun, Binliang Lin, Yuanyi Li, Chenxi Mi, and Tom Shatwell.
“Vertical Mixing and Horizontal Transport Unravel Phytoplankton Blooms in a Large
Riverine Reservoir.” Journal of Hydrology 627, no. B (2023). https://doi.org/10.1016/j.jhydrol.2023.130430.
chicago-de: Gai, Bo, Jian Sun, Binliang Lin, Yuanyi Li, Chenxi Mi und Tom Shatwell.
2023. Vertical mixing and horizontal transport unravel phytoplankton blooms in
a large riverine reservoir. Journal of Hydrology 627, Nr. B. doi:10.1016/j.jhydrol.2023.130430,
.
din1505-2-1: 'Gai, Bo ; Sun,
Jian ; Lin, Binliang ; Li, Yuanyi ; Mi,
Chenxi ; Shatwell, Tom: Vertical
mixing and horizontal transport unravel phytoplankton blooms in a large riverine
reservoir. In: Journal of Hydrology Bd. 627. Amsterdam, Elsevier BV (2023),
Nr. B'
havard: B. Gai, J. Sun, B. Lin, Y. Li, C. Mi, T. Shatwell, Vertical mixing and horizontal
transport unravel phytoplankton blooms in a large riverine reservoir, Journal
of Hydrology. 627 (2023).
ieee: 'B. Gai, J. Sun, B. Lin, Y. Li, C. Mi, and T. Shatwell, “Vertical mixing and
horizontal transport unravel phytoplankton blooms in a large riverine reservoir,”
Journal of Hydrology, vol. 627, no. B, Art. no. 130430, 2023, doi: 10.1016/j.jhydrol.2023.130430.'
mla: Gai, Bo, et al. “Vertical Mixing and Horizontal Transport Unravel Phytoplankton
Blooms in a Large Riverine Reservoir.” Journal of Hydrology, vol. 627,
no. B, 130430, 2023, https://doi.org/10.1016/j.jhydrol.2023.130430.
short: B. Gai, J. Sun, B. Lin, Y. Li, C. Mi, T. Shatwell, Journal of Hydrology 627
(2023).
ufg: 'Gai, Bo u. a.: Vertical mixing and horizontal transport unravel phytoplankton
blooms in a large riverine reservoir, in: Journal of Hydrology 627 (2023),
H. B.'
van: Gai B, Sun J, Lin B, Li Y, Mi C, Shatwell T. Vertical mixing and horizontal
transport unravel phytoplankton blooms in a large riverine reservoir. Journal
of Hydrology. 2023;627(B).
date_created: 2024-12-08T19:41:31Z
date_updated: 2024-12-11T13:51:57Z
department:
- _id: DEP8022
doi: 10.1016/j.jhydrol.2023.130430
extern: '1'
intvolume: ' 627'
issue: B
keyword:
- Phytoplankton bloom dynamics
- Vertical mixing
- Advection transport
- Three-dimensional ecological-hydrodynamic model
- Three Gorges Reservoir
- Dam operation
language:
- iso: eng
place: Amsterdam
publication: Journal of Hydrology
publication_identifier:
eissn:
- 1879-2707
issn:
- 0022-1694
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Vertical mixing and horizontal transport unravel phytoplankton blooms in a
large riverine reservoir
type: scientific_journal_article
user_id: '83781'
volume: 627
year: '2023'
...
---
_id: '12223'
abstract:
- lang: eng
text: Deforestation is currently a widespread phenomenon and a growing environmental
concern in the era of rapid climate change. In temperate regions, it is challenging
to quantify the impacts of deforestation on the catchment dynamics and downstream
aquatic ecosystems such as reservoirs and disentangle these from direct climate
change impacts, let alone project future changes to inform management. Here, we
tackled this issue by investigating a unique catchment-reservoir system with two
reservoirs in distinct trophic states (meso‑ and eutrophic), both of which drain
into the largest drinking water reservoir in Germany. Due to the prolonged droughts
in 2015–2018, the catchment of the mesotrophic reservoir lost an unprecedented
area of forest (exponential increase since 2015 and ca. 17.1% loss in 2020 alone).
We coupled catchment nutrient exports (HYPE) and reservoir ecosystem dynamics
(GOTM-WET) models using a process-based modeling approach. The coupled model was
validated with datasets spanning periods of rapid deforestation, which makes our
future projections highly robust. Results show that in a short-term time scale
(by 2035), increasing nutrient flux from the catchment due to vast deforestation
(80% loss) can turn the mesotrophic reservoir into a eutrophic state as its counterpart.
Our results emphasize the more prominent impacts of deforestation than the direct
impact of climate warming in impairment of water quality and ecological services
to downstream aquatic ecosystems. Therefore, we propose to evaluate the impact
of climate change on temperate reservoirs by incorporating a time scale-dependent
context, highlighting the indirect impact of deforestation in the short-term scale.
In the long-term scale (e.g. to 2100), a guiding hypothesis for future research
may be that indirect effects (e.g., as mediated by catchment dynamics) are as
important as the direct effects of climate warming on aquatic ecosystems.
article_number: '118721'
author:
- first_name: Xiangzhen
full_name: Kong, Xiangzhen
last_name: Kong
- first_name: Salman
full_name: Ghaffar, Salman
last_name: Ghaffar
- first_name: Maria
full_name: Determann, Maria
last_name: Determann
- first_name: Kurt
full_name: Friese, Kurt
last_name: Friese
- first_name: Seifeddine
full_name: Jomaa, Seifeddine
last_name: Jomaa
- first_name: Chenxi
full_name: Mi, Chenxi
last_name: Mi
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
- first_name: Karsten
full_name: Rinke, Karsten
last_name: Rinke
- first_name: Michael
full_name: Rode, Michael
last_name: Rode
citation:
ama: 'Kong X, Ghaffar S, Determann M, et al. Reservoir water quality deterioration
due to deforestation emphasizes the indirect effects of global change. Water
research : a journal of the International Water Association. 2022;221(8).
doi:10.1016/j.watres.2022.118721'
apa: 'Kong, X., Ghaffar, S., Determann, M., Friese, K., Jomaa, S., Mi, C., Shatwell,
T., Rinke, K., & Rode, M. (2022). Reservoir water quality deterioration due
to deforestation emphasizes the indirect effects of global change. Water Research :
A Journal of the International Water Association, 221(8), Article 118721.
https://doi.org/10.1016/j.watres.2022.118721'
bjps: 'Kong X et al. (2022) Reservoir Water Quality Deterioration
Due to Deforestation Emphasizes the Indirect Effects of Global Change. Water
research : a journal of the International Water Association 221.'
chicago: 'Kong, Xiangzhen, Salman Ghaffar, Maria Determann, Kurt Friese, Seifeddine
Jomaa, Chenxi Mi, Tom Shatwell, Karsten Rinke, and Michael Rode. “Reservoir Water
Quality Deterioration Due to Deforestation Emphasizes the Indirect Effects of
Global Change.” Water Research : A Journal of the International Water Association
221, no. 8 (2022). https://doi.org/10.1016/j.watres.2022.118721.'
chicago-de: 'Kong, Xiangzhen, Salman Ghaffar, Maria Determann, Kurt Friese, Seifeddine
Jomaa, Chenxi Mi, Tom Shatwell, Karsten Rinke und Michael Rode. 2022. Reservoir
water quality deterioration due to deforestation emphasizes the indirect effects
of global change. Water research : a journal of the International Water Association
221, Nr. 8. doi:10.1016/j.watres.2022.118721,
.'
din1505-2-1: 'Kong,
Xiangzhen ; Ghaffar, Salman
; Determann, Maria ; Friese,
Kurt ; Jomaa, Seifeddine
; Mi, Chenxi ; Shatwell,
Tom ; Rinke, Karsten ; u. a.:
Reservoir water quality deterioration due to deforestation emphasizes the indirect
effects of global change. In: Water research : a journal of the International
Water Association Bd. 221. Amsterdam, Elsevier BV (2022), Nr. 8'
havard: 'X. Kong, S. Ghaffar, M. Determann, K. Friese, S. Jomaa, C. Mi, T. Shatwell,
K. Rinke, M. Rode, Reservoir water quality deterioration due to deforestation
emphasizes the indirect effects of global change, Water Research : A Journal of
the International Water Association. 221 (2022).'
ieee: 'X. Kong et al., “Reservoir water quality deterioration due to deforestation
emphasizes the indirect effects of global change,” Water research : a journal
of the International Water Association, vol. 221, no. 8, Art. no. 118721,
2022, doi: 10.1016/j.watres.2022.118721.'
mla: 'Kong, Xiangzhen, et al. “Reservoir Water Quality Deterioration Due to Deforestation
Emphasizes the Indirect Effects of Global Change.” Water Research : A Journal
of the International Water Association, vol. 221, no. 8, 118721, 2022, https://doi.org/10.1016/j.watres.2022.118721.'
short: 'X. Kong, S. Ghaffar, M. Determann, K. Friese, S. Jomaa, C. Mi, T. Shatwell,
K. Rinke, M. Rode, Water Research : A Journal of the International Water Association
221 (2022).'
ufg: 'Kong, Xiangzhen u. a.: Reservoir water quality deterioration due to
deforestation emphasizes the indirect effects of global change, in: Water research :
a journal of the International Water Association 221 (2022), H. 8.'
van: 'Kong X, Ghaffar S, Determann M, Friese K, Jomaa S, Mi C, et al. Reservoir
water quality deterioration due to deforestation emphasizes the indirect effects
of global change. Water research : a journal of the International Water Association.
2022;221(8).'
date_created: 2024-12-08T19:52:43Z
date_updated: 2024-12-11T13:11:19Z
department:
- _id: DEP8022
doi: 10.1016/j.watres.2022.118721
extern: '1'
intvolume: ' 221'
issue: '8'
keyword:
- Deforestation
- Climate change
- Temperate regions
- Reservoir
- Eutrophication
- Process-based modeling
language:
- iso: eng
place: Amsterdam
publication: 'Water research : a journal of the International Water Association'
publication_identifier:
eissn:
- 1879-2448
issn:
- 0043-1354
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Reservoir water quality deterioration due to deforestation emphasizes the indirect
effects of global change
type: scientific_journal_article
user_id: '83781'
volume: 221
year: '2022'
...
---
_id: '12233'
abstract:
- lang: eng
text: The thermal structure in reservoirs affects the development of aquatic ecosystems,
and can be substantially influenced by climate change and management strategies.
We applied a two-dimensional hydrodynamic model to explore the response of the
thermal structure in Germany's largest drinking water reservoir, Rappbode Reservoir,
to future climate projections and different water withdrawal strategies. We used
projections for representative concentration pathways (RCP) 2.6, 6.0 and 8.5 from
an ensemble of 4 different global climate models. Simulation results showed that
epilimnetic water temperatures in the reservoir strongly increased under all three
climate scenarios. Hypolimnetic temperatures remained rather constant under RCP
2.6 and RCP 6.0 but increased markedly under RCP 8.5. Under the intense warming
in RCP 8.5, hypolimnion temperatures were projected to rise from 5 °C to 8 °C
by the end of the century. Stratification in the reservoir was projected to be
more stable under RCP 6.0 and RCP 8.5, but did not show significant changes under
RCP 2.6. Similar results were found with respect to the light intensity within
the mixed-layer. Moreover, the results suggested that surface withdrawal can be
an effective adaptation strategy under strong climate warming (RCP 8.5) to reduce
surface warming and avoid hypolimnetic warming. This study documents how global
scale climate projections can be translated into site-specific climate impacts
to derive adaptation strategies for reservoir operation. Moreover, our results
illustrate that the most intense warming scenario, i.e. RCP 8.5, demands far-reaching
climate adaptation while the mitigation scenario (RCP 2.6) does not require adaptation
of reservoir management before 2100.
article_number: '141366'
author:
- first_name: Chenxi
full_name: Mi, Chenxi
last_name: Mi
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
- first_name: Jun
full_name: Ma, Jun
last_name: Ma
- first_name: Yaqian
full_name: Xu, Yaqian
last_name: Xu
- first_name: Fangli
full_name: Su, Fangli
last_name: Su
- first_name: Karsten
full_name: Rinke, Karsten
last_name: Rinke
citation:
ama: 'Mi C, Shatwell T, Ma J, Xu Y, Su F, Rinke K. Ensemble warming projections
in Germany’s largest drinking water reservoir and potential adaptation strategies.
The science of the total environment : an international journal for scientific
research into the environment and its relationship with man. 2020;748(12).
doi:10.1016/j.scitotenv.2020.141366'
apa: 'Mi, C., Shatwell, T., Ma, J., Xu, Y., Su, F., & Rinke, K. (2020). Ensemble
warming projections in Germany’s largest drinking water reservoir and potential
adaptation strategies. The Science of the Total Environment : An International
Journal for Scientific Research into the Environment and Its Relationship with
Man, 748(12), Article 141366. https://doi.org/10.1016/j.scitotenv.2020.141366'
bjps: 'Mi C et al. (2020) Ensemble Warming Projections in Germany’s
Largest Drinking Water Reservoir and Potential Adaptation Strategies. The science
of the total environment : an international journal for scientific research into
the environment and its relationship with man 748.'
chicago: 'Mi, Chenxi, Tom Shatwell, Jun Ma, Yaqian Xu, Fangli Su, and Karsten Rinke.
“Ensemble Warming Projections in Germany’s Largest Drinking Water Reservoir and
Potential Adaptation Strategies.” The Science of the Total Environment : An
International Journal for Scientific Research into the Environment and Its Relationship
with Man 748, no. 12 (2020). https://doi.org/10.1016/j.scitotenv.2020.141366.'
chicago-de: 'Mi, Chenxi, Tom Shatwell, Jun Ma, Yaqian Xu, Fangli Su und Karsten
Rinke. 2020. Ensemble warming projections in Germany’s largest drinking water
reservoir and potential adaptation strategies. The science of the total environment :
an international journal for scientific research into the environment and its
relationship with man 748, Nr. 12. doi:10.1016/j.scitotenv.2020.141366,
.'
din1505-2-1: 'Mi, Chenxi ; Shatwell,
Tom ; Ma, Jun ; Xu,
Yaqian ; Su, Fangli ; Rinke, Karsten: Ensemble warming projections
in Germany’s largest drinking water reservoir and potential adaptation strategies.
In: The science of the total environment : an international journal for scientific
research into the environment and its relationship with man Bd. 748. Amsterdam,
Elsevier BV (2020), Nr. 12'
havard: 'C. Mi, T. Shatwell, J. Ma, Y. Xu, F. Su, K. Rinke, Ensemble warming projections
in Germany’s largest drinking water reservoir and potential adaptation strategies,
The Science of the Total Environment : An International Journal for Scientific
Research into the Environment and Its Relationship with Man. 748 (2020).'
ieee: 'C. Mi, T. Shatwell, J. Ma, Y. Xu, F. Su, and K. Rinke, “Ensemble warming
projections in Germany’s largest drinking water reservoir and potential adaptation
strategies,” The science of the total environment : an international journal
for scientific research into the environment and its relationship with man,
vol. 748, no. 12, Art. no. 141366, 2020, doi: 10.1016/j.scitotenv.2020.141366.'
mla: 'Mi, Chenxi, et al. “Ensemble Warming Projections in Germany’s Largest Drinking
Water Reservoir and Potential Adaptation Strategies.” The Science of the Total
Environment : An International Journal for Scientific Research into the Environment
and Its Relationship with Man, vol. 748, no. 12, 141366, 2020, https://doi.org/10.1016/j.scitotenv.2020.141366.'
short: 'C. Mi, T. Shatwell, J. Ma, Y. Xu, F. Su, K. Rinke, The Science of the Total
Environment : An International Journal for Scientific Research into the Environment
and Its Relationship with Man 748 (2020).'
ufg: 'Mi, Chenxi u. a.: Ensemble warming projections in Germany’s largest
drinking water reservoir and potential adaptation strategies, in: The science
of the total environment : an international journal for scientific research into
the environment and its relationship with man 748 (2020), H. 12.'
van: 'Mi C, Shatwell T, Ma J, Xu Y, Su F, Rinke K. Ensemble warming projections
in Germany’s largest drinking water reservoir and potential adaptation strategies.
The science of the total environment : an international journal for scientific
research into the environment and its relationship with man. 2020;748(12).'
date_created: 2024-12-08T20:23:26Z
date_updated: 2024-12-09T11:18:40Z
department:
- _id: DEP8022
doi: 10.1016/j.scitotenv.2020.141366
extern: '1'
intvolume: ' 748'
issue: '12'
keyword:
- Rappbode Reservoir
- Thermal structure
- Climate change
- CE-QUAL-W2
- Selective water withdrawal
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1016/j.scitotenv.2020.141366
place: Amsterdam
publication: 'The science of the total environment : an international journal for
scientific research into the environment and its relationship with man'
publication_identifier:
eissn:
- 1879-1026
issn:
- 0048-9697
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Ensemble warming projections in Germany's largest drinking water reservoir
and potential adaptation strategies
type: scientific_journal_article
user_id: '83781'
volume: 748
year: '2020'
...
---
_id: '12235'
abstract:
- lang: eng
text: Metalimnetic oxygen minima are observed in many lakes and reservoirs, but
the mechanisms behind this phenomena are not well understood. Thus, we simulated
the metalimnetic oxygen minimum (MOM) in the Rappbode Reservoir with a well-established
two-dimensional water quality model (CE-QUAL-W2) to systematically quantify the
chain of events leading to its formation. We used high-resolution measured data
to calibrate the model, which accurately reproduced the physical (e.g. water level
and water temperature), biogeochemical (e.g. nutrient and oxygen dynamics) and
ecological (e.g. algal community dynamics) features of the reservoir, particularly
the spatial and temporal extent of the MOM. The results indicated that around
60% of the total oxygen consumption rate in the MOM layer originated from benthic
processes whereas the remainder originated from pelagic processes. The occurrence
of the cyanobacterium Planktothrix rubescens in the metalimnion delayed and slightly
weakened the MOM through photosynthesis, although its decaying biomass ultimately
induced the MOM. Our research also confirmed the decisive role of water temperature
in the formation of the MOM since the water temperatures, and thus benthic and
pelagic oxygen consumption rates, were higher in the metalimnion than in the hypolimnion.
Our model is not only providing novel conclusions about the drivers of MOM development
and their quantitative contributions, it is also a new tool for understanding
and predicting ecological and biogeochemical water quality dynamics.
article_number: '115701'
author:
- first_name: Chenxi
full_name: Mi, Chenxi
last_name: Mi
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
- first_name: Jun
full_name: Ma, Jun
last_name: Ma
- first_name: Valerie Carolin
full_name: Wentzky, Valerie Carolin
last_name: Wentzky
- first_name: Bertram
full_name: Boehrer, Bertram
last_name: Boehrer
- first_name: Yaqian
full_name: Xu, Yaqian
last_name: Xu
- first_name: Karsten
full_name: Rinke, Karsten
last_name: Rinke
citation:
ama: 'Mi C, Shatwell T, Ma J, et al. The formation of a metalimnetic oxygen minimum
exemplifies how ecosystem dynamics shape biogeochemical processes: A modelling
study. Water research : a journal of the International Water Association.
2020;175(5). doi:10.1016/j.watres.2020.115701'
apa: 'Mi, C., Shatwell, T., Ma, J., Wentzky, V. C., Boehrer, B., Xu, Y., & Rinke,
K. (2020). The formation of a metalimnetic oxygen minimum exemplifies how ecosystem
dynamics shape biogeochemical processes: A modelling study. Water Research :
A Journal of the International Water Association, 175(5), Article 115701.
https://doi.org/10.1016/j.watres.2020.115701'
bjps: 'Mi C et al. (2020) The Formation of a Metalimnetic Oxygen Minimum
Exemplifies How Ecosystem Dynamics Shape Biogeochemical Processes: A Modelling
Study. Water research : a journal of the International Water Association
175.'
chicago: 'Mi, Chenxi, Tom Shatwell, Jun Ma, Valerie Carolin Wentzky, Bertram Boehrer,
Yaqian Xu, and Karsten Rinke. “The Formation of a Metalimnetic Oxygen Minimum
Exemplifies How Ecosystem Dynamics Shape Biogeochemical Processes: A Modelling
Study.” Water Research : A Journal of the International Water Association
175, no. 5 (2020). https://doi.org/10.1016/j.watres.2020.115701.'
chicago-de: 'Mi, Chenxi, Tom Shatwell, Jun Ma, Valerie Carolin Wentzky, Bertram
Boehrer, Yaqian Xu und Karsten Rinke. 2020. The formation of a metalimnetic oxygen
minimum exemplifies how ecosystem dynamics shape biogeochemical processes: A modelling
study. Water research : a journal of the International Water Association
175, Nr. 5. doi:10.1016/j.watres.2020.115701,
.'
din1505-2-1: 'Mi, Chenxi ; Shatwell,
Tom ; Ma, Jun ; Wentzky,
Valerie Carolin ; Boehrer, Bertram
; Xu, Yaqian ; Rinke,
Karsten: The formation of a metalimnetic oxygen minimum exemplifies how
ecosystem dynamics shape biogeochemical processes: A modelling study. In: Water
research : a journal of the International Water Association Bd. 175. Amsterdam,
Elsevier BV (2020), Nr. 5'
havard: 'C. Mi, T. Shatwell, J. Ma, V.C. Wentzky, B. Boehrer, Y. Xu, K. Rinke, The
formation of a metalimnetic oxygen minimum exemplifies how ecosystem dynamics
shape biogeochemical processes: A modelling study, Water Research : A Journal
of the International Water Association. 175 (2020).'
ieee: 'C. Mi et al., “The formation of a metalimnetic oxygen minimum exemplifies
how ecosystem dynamics shape biogeochemical processes: A modelling study,” Water
research : a journal of the International Water Association, vol. 175, no.
5, Art. no. 115701, 2020, doi: 10.1016/j.watres.2020.115701.'
mla: 'Mi, Chenxi, et al. “The Formation of a Metalimnetic Oxygen Minimum Exemplifies
How Ecosystem Dynamics Shape Biogeochemical Processes: A Modelling Study.” Water
Research : A Journal of the International Water Association, vol. 175, no.
5, 115701, 2020, https://doi.org/10.1016/j.watres.2020.115701.'
short: 'C. Mi, T. Shatwell, J. Ma, V.C. Wentzky, B. Boehrer, Y. Xu, K. Rinke, Water
Research : A Journal of the International Water Association 175 (2020).'
ufg: 'Mi, Chenxi u. a.: The formation of a metalimnetic oxygen minimum exemplifies
how ecosystem dynamics shape biogeochemical processes: A modelling study, in:
Water research : a journal of the International Water Association 175 (2020),
H. 5.'
van: 'Mi C, Shatwell T, Ma J, Wentzky VC, Boehrer B, Xu Y, et al. The formation
of a metalimnetic oxygen minimum exemplifies how ecosystem dynamics shape biogeochemical
processes: A modelling study. Water research : a journal of the International
Water Association. 2020;175(5).'
date_created: 2024-12-08T20:26:00Z
date_updated: 2024-12-09T10:25:49Z
department:
- _id: DEP8022
doi: 10.1016/j.watres.2020.115701
extern: '1'
intvolume: ' 175'
issue: '5'
keyword:
- Rappbode reservoir
- CE-QUAL-W2
- Planktothrix rubescens
- Metalimnion
- Oxygen consumption
- Benthic processes
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1016/j.watres.2020.115701
place: Amsterdam
publication: 'Water research : a journal of the International Water Association'
publication_identifier:
eissn:
- 1879-2448
issn:
- 0043-1354
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 'The formation of a metalimnetic oxygen minimum exemplifies how ecosystem dynamics
shape biogeochemical processes: A modelling study'
type: scientific_journal_article
user_id: '83781'
volume: 175
year: '2020'
...