{"id":{"repo_id":"tu-berlin","oai_identifier":"oai:depositonce.tu-berlin.de:11303/24766"},"canonical_url":"https://search.dev.ndltd.org/etd/tu-berlin/oai:depositonce.tu-berlin.de:11303/24766","repository":{"repo_id":"tu-berlin","name":"Technische Universität Berlin","base_url":"https://api-depositonce.tu-berlin.de/server/oai/request"},"display":{"title":"Advancing combined water supply and demand planning and management under climatic and socio-economic change","abstract":"With climate change increasing the stress on water resources and aging water infrastructure needing replacement in the Western United States, water utilities are tasked with planning and managing an increasingly complex water system to meet key objectives such as water security, drought resilience, affordability, and equitable access to water. However, they still often rely on simple assumptions to model their water resource systems, and changes in management practices are often implemented reactively, in response to changing external conditions, instead of proactively. The main goal of this thesis is to advance and develop analytic frameworks and modeling tools to facilitate the analysis of combined water supply and demand planning and management strategies and drought-resilient adaptive water resource planning at the state-wide scale of California, USA, to ultimately formulate future policy recommendations. The contribution of this thesis is threefold. First, we contribute an open-access dataset which encompasses nine years (2013-2021) of monthly time series of residential water supply and demand data for 404 water suppliers in California. Second, we develop a three-step descriptive analytics framework powered by explainable artificial intelligence to assess the influence of climate, regional, institutional, and socio-economic factors on combined water supply and demand management patterns. Third, we generalize a state-of-the-art adaptive water resource planning tool that includes multiple, scalable water augmentation and demand options, to provide state-wide drought resilience planning and management recommendations. We find that in times of drought and pandemic in California either water supply operations promptly adapted to changes in water demand, or combined water supply and demand management strategies have been implemented effectively and in a coordinated way. Further, our retrospective results indicate that combined water supply and demand management strategies can foster more equal usage of water resources across California. For the optimal state-wide, drought resilient combined water supply and demand planning and management portfolio, we find that drought characteristics influence planning decisions as well as the available water sources of a water utility. Also, our results show that technological advances such as decentralized water reuse can significantly reduce planning costs. These findings reinforce the call from previous research that state-wide water policies need to be more flexible, accounting for water utility features, e.g., size, region, and storage capacities.","abstract_html":"With climate change increasing the stress on water resources and aging water infrastructure needing replacement in the Western United States, water utilities are tasked with planning and managing an increasingly complex water system to meet key objectives such as water security, drought resilience, affordability, and equitable access to water. However, they still often rely on simple assumptions to model their water resource systems, and changes in management practices are often implemented reactively, in response to changing external conditions, instead of proactively. The main goal of this thesis is to advance and develop analytic frameworks and modeling tools to facilitate the analysis of combined water supply and demand planning and management strategies and drought-resilient adaptive water resource planning at the state-wide scale of California, USA, to ultimately formulate future policy recommendations. The contribution of this thesis is threefold. First, we contribute an open-access dataset which encompasses nine years (2013-2021) of monthly time series of residential water supply and demand data for 404 water suppliers in California. Second, we develop a three-step descriptive analytics framework powered by explainable artificial intelligence to assess the influence of climate, regional, institutional, and socio-economic factors on combined water supply and demand management patterns. Third, we generalize a state-of-the-art adaptive water resource planning tool that includes multiple, scalable water augmentation and demand options, to provide state-wide drought resilience planning and management recommendations. We find that in times of drought and pandemic in California either water supply operations promptly adapted to changes in water demand, or combined water supply and demand management strategies have been implemented effectively and in a coordinated way. Further, our retrospective results indicate that combined water supply and demand management strategies can foster more equal usage of water resources across California. For the optimal state-wide, drought resilient combined water supply and demand planning and management portfolio, we find that drought characteristics influence planning decisions as well as the available water sources of a water utility. Also, our results show that technological advances such as decentralized water reuse can significantly reduce planning costs. These findings reinforce the call from previous research that state-wide water policies need to be more flexible, accounting for water utility features, e.g., size, region, and storage capacities.","abstract_has_math":false,"creators":["Gross, Marie-Philine"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Cominola, Andrea"],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025","date_published":"2025","updated_at":"2026-07-27T21:28:40Z","subjects":[],"languages":["en"],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://doi.org/10.14279/depositonce-23582"],"render_values":[{"text":"https://doi.org/10.14279/depositonce-23582","href":"https://doi.org/10.14279/depositonce-23582","code":true}]}]},"links":{"outbound_url":"https://depositonce.tu-berlin.de/handle/11303/24766","outbound_label":"Repository record","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Cominola, Andrea"]},{"key":"dc:creator","label":"Author","values":["Gross, Marie-Philine"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-04-30T13:54:02Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-04-30T13:54:02Z"]},{"key":"dc:date.issued","label":"Date","values":["2025"]},{"key":"dc:type","label":"Dc Type","values":["Doctoral Thesis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://depositonce.tu-berlin.de/handle/11303/24766","https://doi.org/10.14279/depositonce-23582"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["With climate change increasing the stress on water resources and aging water infrastructure needing replacement in the Western United States, water utilities are tasked with planning and managing an increasingly complex water system to meet key objectives such as water security, drought resilience, affordability, and equitable access to water. However, they still often rely on simple assumptions to model their water resource systems, and changes in management practices are often implemented reactively, in response to changing external conditions, instead of proactively. The main goal of this thesis is to advance and develop analytic frameworks and modeling tools to facilitate the analysis of combined water supply and demand planning and management strategies and drought-resilient adaptive water resource planning at the state-wide scale of California, USA, to ultimately formulate future policy recommendations. The contribution of this thesis is threefold. First, we contribute an open-access dataset which encompasses nine years (2013-2021) of monthly time series of residential water supply and demand data for 404 water suppliers in California. Second, we develop a three-step descriptive analytics framework powered by explainable artificial intelligence to assess the influence of climate, regional, institutional, and socio-economic factors on combined water supply and demand management patterns. Third, we generalize a state-of-the-art adaptive water resource planning tool that includes multiple, scalable water augmentation and demand options, to provide state-wide drought resilience planning and management recommendations. We find that in times of drought and pandemic in California either water supply operations promptly adapted to changes in water demand, or combined water supply and demand management strategies have been implemented effectively and in a coordinated way. Further, our retrospective results indicate that combined water supply and demand management strategies can foster more equal usage of water resources across California. For the optimal state-wide, drought resilient combined water supply and demand planning and management portfolio, we find that drought characteristics influence planning decisions as well as the available water sources of a water utility. Also, our results show that technological advances such as decentralized water reuse can significantly reduce planning costs. These findings reinforce the call from previous research that state-wide water policies need to be more flexible, accounting for water utility features, e.g., size, region, and storage capacities.","Angesichts des Klimawandels, der die Wasserressourcen immer stärker ein\\-schrän\\-kt, und der alternden Wasserinfrastruktur im Westen der Vereinigten Staaten, sind die Wasserversorgungsunternehmen mit der Planung und Verwaltung eines immer komplexeren Wassersystems betraut, um die wichtigsten Ziele der Wasserversorgung zu erreichen, wie z. B. die Sicherstellung der Versorgung, die Resilienz gegen Dürre, die Bezahlbarkeit und den gerechten Zugang zu Wasser. Allerdings stützen sie sich bei der Modellierung und Optimierung von Wasserressourcen häufig noch auf einfache Ansätze und Änderungen in der Managementpraxis werden häufig reaktiv statt präventiv umgesetzt. Das Hauptziel dieser Arbeit ist die Entwicklung von Analyseverfahren und Modellierungsansätzen, um die Analyse kombinierter Strategien zur Steuerung von Wasserangebot und -nachfrage sowie eine anpassungsfähige, dürreresistente Planung der Wasserressourcen auf der Ebene des gesamten Bundesstaates Kalifornien zu ermöglichen, um schließlich Empfehlungen für künftige Maßnahmen zu formulieren. Diese Arbeit leistet dazu einen Beitrag in dreierlei Hinsicht. Erstens stellen wir einen frei zugänglichen Datensatz für die Wasserversorgung und -nachfrage von Privathaushalten für 404 Wasserversorger in Kalifornien über einen Zeitraum von neun Jahren (2013-2021) vor. Zweitens stellen wir ein dreistufiges Analyseverfahren basierend auf erklärbarer künstlicher Intelligenz vor, um den Einfluss klimatischer, regionaler, institutioneller und sozioökonomischer Faktoren auf kombinierte Wasserangebots- und -nachfragemanagementmuster zu bewerten. Drittens verallgemeinern wir ein adaptives Planungsinstrument für Wasserressourcen, das mehrere skalierbare Optionen zur Resourcenerweiterung und für das Nachfragemanagement enthält, um staatsweite Empfehlungen für eine widerstandsfähige Dürreplannung zu geben. Wir stellen fest, dass sich die Wasserversorgung in Zeiten von Dürre und Pandemie entweder umgehend an die veränderte Wassernachfrage angepasst hat oder dass kombinierte Strategien zur Steuerung der Wasserversorgung und der Nachfrage wirksam und koordiniert umgesetzt worden sind. Darüber hinaus zeigen unsere Ergebnisse, dass kombinierte Wasserversorgungs- und Nachfragesteuerungs\\-strategien eine gleichmäßigere Nutzung der Wasserressourcen fördern können. Für das optimale landesweite, dürreresistente kombinierte Planungs- und Managementportfolio für Wasserangebot und -nachfrage stellen wir fest, dass die Merkmale der Dürre die Planungsentscheidungen ebenso beeinflussen wie die verfügbaren Wasserquellen eines Wasserversorgungsunternehmens. Außerdem zeigen unsere Ergebnisse, dass technologische Fortschritte wie die dezentrale Wiederverwendung von Wasser die Planungskosten erheblich senken können. Dies unterstreicht die Forderung früherer Untersuchungen, dass eine landesweite Wasserpolitik flexibler sein und die Merkmale der Wasserversorgungsunternehmen, z. B. Größe, Region und Wasserkapazitäten, berücksichtigen muss."]},{"key":"dc:title","label":"Title","values":["Advancing combined water supply and demand planning and management under climatic and socio-economic change"]}]}],"canonical_facts":{"dc:contributor.advisor":["Cominola, Andrea"],"dc:creator":["Gross, Marie-Philine"],"dc:date.accessioned":["2025-04-30T13:54:02Z"],"dc:date.available":["2025-04-30T13:54:02Z"],"dc:date.issued":["2025"],"dc:description.abstract":["With climate change increasing the stress on water resources and aging water infrastructure needing replacement in the Western United States, water utilities are tasked with planning and managing an increasingly complex water system to meet key objectives such as water security, drought resilience, affordability, and equitable access to water. However, they still often rely on simple assumptions to model their water resource systems, and changes in management practices are often implemented reactively, in response to changing external conditions, instead of proactively. The main goal of this thesis is to advance and develop analytic frameworks and modeling tools to facilitate the analysis of combined water supply and demand planning and management strategies and drought-resilient adaptive water resource planning at the state-wide scale of California, USA, to ultimately formulate future policy recommendations. The contribution of this thesis is threefold. First, we contribute an open-access dataset which encompasses nine years (2013-2021) of monthly time series of residential water supply and demand data for 404 water suppliers in California. Second, we develop a three-step descriptive analytics framework powered by explainable artificial intelligence to assess the influence of climate, regional, institutional, and socio-economic factors on combined water supply and demand management patterns. Third, we generalize a state-of-the-art adaptive water resource planning tool that includes multiple, scalable water augmentation and demand options, to provide state-wide drought resilience planning and management recommendations. We find that in times of drought and pandemic in California either water supply operations promptly adapted to changes in water demand, or combined water supply and demand management strategies have been implemented effectively and in a coordinated way. Further, our retrospective results indicate that combined water supply and demand management strategies can foster more equal usage of water resources across California. For the optimal state-wide, drought resilient combined water supply and demand planning and management portfolio, we find that drought characteristics influence planning decisions as well as the available water sources of a water utility. Also, our results show that technological advances such as decentralized water reuse can significantly reduce planning costs. These findings reinforce the call from previous research that state-wide water policies need to be more flexible, accounting for water utility features, e.g., size, region, and storage capacities.","Angesichts des Klimawandels, der die Wasserressourcen immer stärker ein\\-schrän\\-kt, und der alternden Wasserinfrastruktur im Westen der Vereinigten Staaten, sind die Wasserversorgungsunternehmen mit der Planung und Verwaltung eines immer komplexeren Wassersystems betraut, um die wichtigsten Ziele der Wasserversorgung zu erreichen, wie z. B. die Sicherstellung der Versorgung, die Resilienz gegen Dürre, die Bezahlbarkeit und den gerechten Zugang zu Wasser. Allerdings stützen sie sich bei der Modellierung und Optimierung von Wasserressourcen häufig noch auf einfache Ansätze und Änderungen in der Managementpraxis werden häufig reaktiv statt präventiv umgesetzt. Das Hauptziel dieser Arbeit ist die Entwicklung von Analyseverfahren und Modellierungsansätzen, um die Analyse kombinierter Strategien zur Steuerung von Wasserangebot und -nachfrage sowie eine anpassungsfähige, dürreresistente Planung der Wasserressourcen auf der Ebene des gesamten Bundesstaates Kalifornien zu ermöglichen, um schließlich Empfehlungen für künftige Maßnahmen zu formulieren. Diese Arbeit leistet dazu einen Beitrag in dreierlei Hinsicht. Erstens stellen wir einen frei zugänglichen Datensatz für die Wasserversorgung und -nachfrage von Privathaushalten für 404 Wasserversorger in Kalifornien über einen Zeitraum von neun Jahren (2013-2021) vor. Zweitens stellen wir ein dreistufiges Analyseverfahren basierend auf erklärbarer künstlicher Intelligenz vor, um den Einfluss klimatischer, regionaler, institutioneller und sozioökonomischer Faktoren auf kombinierte Wasserangebots- und -nachfragemanagementmuster zu bewerten. Drittens verallgemeinern wir ein adaptives Planungsinstrument für Wasserressourcen, das mehrere skalierbare Optionen zur Resourcenerweiterung und für das Nachfragemanagement enthält, um staatsweite Empfehlungen für eine widerstandsfähige Dürreplannung zu geben. Wir stellen fest, dass sich die Wasserversorgung in Zeiten von Dürre und Pandemie entweder umgehend an die veränderte Wassernachfrage angepasst hat oder dass kombinierte Strategien zur Steuerung der Wasserversorgung und der Nachfrage wirksam und koordiniert umgesetzt worden sind. Darüber hinaus zeigen unsere Ergebnisse, dass kombinierte Wasserversorgungs- und Nachfragesteuerungs\\-strategien eine gleichmäßigere Nutzung der Wasserressourcen fördern können. Für das optimale landesweite, dürreresistente kombinierte Planungs- und Managementportfolio für Wasserangebot und -nachfrage stellen wir fest, dass die Merkmale der Dürre die Planungsentscheidungen ebenso beeinflussen wie die verfügbaren Wasserquellen eines Wasserversorgungsunternehmens. Außerdem zeigen unsere Ergebnisse, dass technologische Fortschritte wie die dezentrale Wiederverwendung von Wasser die Planungskosten erheblich senken können. Dies unterstreicht die Forderung früherer Untersuchungen, dass eine landesweite Wasserpolitik flexibler sein und die Merkmale der Wasserversorgungsunternehmen, z. B. Größe, Region und Wasserkapazitäten, berücksichtigen muss."],"dc:identifier.uri":["https://depositonce.tu-berlin.de/handle/11303/24766","https://doi.org/10.14279/depositonce-23582"],"dc:language.iso":["en"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Advancing combined water supply and demand planning and management under climatic and socio-economic change"],"dc:type":["Doctoral Thesis"]},"updated_at":"2026-07-27T21:28:40Z"}