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The Niger Delta Region is the largest river delta in Africa and features the fifth largest mangrove forest on Earth. It provides numerous ecosystem services to the local populations and holds a wealth of biodiversity. However, due to the oil and gas reserves and the explosion of human population it is under threat from overexploitation and degradation. There is a pressing need for an accurate assessment of the land cover dynamics in the region. The limited previous efforts have produced controversial results, as the area of western Africa is notorious for the gaps in the Landsat archive and the lack of cloud-free data. Even fewer studies have attempted to map the extent of the degraded mangrove forest system, reporting low accuracies. Here, we map the eight main land cover classes over the NDR using spectral-temporal metrics from all available Landsat data centred around three epochs. We also test the performance of the classification when L-band radar data are added to the Landsat-based metrics. To further our understanding of the land cover change dynamics, we carry out two additional assessments: a change intensity analysis for the entire NDR and, focusing specifically on the mangrove forest, we analyse the fragmentation of both the healthy and the degraded mangrove land cover classes. We achieve high overall classification accuracies in all epochs (~79% for 1988, and 82% for 2000 and 2013) and are able to map the degraded mangroves accurately, for the first time, with user’s accuracies between 77% and 87% and producer’s accuracies consistently above 82%. Our results show that mangrove forests, lowland rainforests, and freshwater forests are reporting net and highly intense losses (mangrove net loss: ~500 km2; woodland net loss: ~1400 km2), while built-up areas have almost doubled in size (from 1990 km2 in 1988 to 3730 km2 in 2013). The mangrove forests are also consistently more fragmented, with the opposite effect being observed for the degraded mangroves in more recent years. Our study provides a valuable assessment of land cover dynamics in the NDR and the first ever accurate estimates of the extent of the degraded mangrove forest and its fragmentation.
Iliya Nababa; Elias Symeonakis; Sotirios Koukoulas; Thomas Higginbottom; Gina Cavan; Stuart Marsden. Land Cover Dynamics and Mangrove Degradation in the Niger Delta Region. Remote Sensing 2020, 12, 3619 .
AMA StyleIliya Nababa, Elias Symeonakis, Sotirios Koukoulas, Thomas Higginbottom, Gina Cavan, Stuart Marsden. Land Cover Dynamics and Mangrove Degradation in the Niger Delta Region. Remote Sensing. 2020; 12 (21):3619.
Chicago/Turabian StyleIliya Nababa; Elias Symeonakis; Sotirios Koukoulas; Thomas Higginbottom; Gina Cavan; Stuart Marsden. 2020. "Land Cover Dynamics and Mangrove Degradation in the Niger Delta Region." Remote Sensing 12, no. 21: 3619.
Domestic gardens are an important component of cities, contributing significantly to urban green infrastructure (GI) and its associated ecosystem services. However, domestic gardens are incredibly heterogeneous which presents challenges for quantifying their GI contribution and associated benefits for sustainable urban development. This study applies an innovative methodology that combines citizen science data with high resolution image analysis to create a garden dataset in the case study city of Manchester, UK. An online Citizen Science Survey (CSS) collected estimates of proportional coverage for 10 garden land surface types from 1031 city residents. High resolution image analysis was conducted to validate the CSS estimates, and to classify 7 land surface cover categories for all garden parcels in the city. Validation of the CSS land surface estimations revealed a mean accuracy of 76.63% (s = 15.24%), demonstrating that citizens are able to provide valid estimates of garden surface coverage proportions. An Object Based Image Analysis (OBIA) classification achieved an estimated overall accuracy of 82%, with further processing required to classify shadow objects. CSS land surface estimations were then extrapolated across the entire classification through calculation of within image class proportions, to provide the proportional coverage of 10 garden land surface types (buildings, hard impervious surfaces, hard pervious surfaces, bare soil, trees, shrubs, mown grass, rough grass, cultivated land, water) within every garden parcel in the city. The final dataset provides a better understanding of the composition of GI in domestic gardens and how this varies across the city. An average garden in Manchester has 50.23% GI, including trees (16.54%), mown grass (14.46%), shrubs (9.19%), cultivated land (7.62%), rough grass (1.97%) and water (0.45%). At the city scale, Manchester has 49.0% GI, and around one fifth (20.94%) of this GI is contained within domestic gardens. This is useful evidence to inform local urban development policies.
Fraser Baker; Claire L. Smith; Gina Cavan. A Combined Approach to Classifying Land Surface Cover of Urban Domestic Gardens Using Citizen Science Data and High Resolution Image Analysis. Remote Sensing 2018, 10, 537 .
AMA StyleFraser Baker, Claire L. Smith, Gina Cavan. A Combined Approach to Classifying Land Surface Cover of Urban Domestic Gardens Using Citizen Science Data and High Resolution Image Analysis. Remote Sensing. 2018; 10 (4):537.
Chicago/Turabian StyleFraser Baker; Claire L. Smith; Gina Cavan. 2018. "A Combined Approach to Classifying Land Surface Cover of Urban Domestic Gardens Using Citizen Science Data and High Resolution Image Analysis." Remote Sensing 10, no. 4: 537.
Common approaches to mapping green infrastructure in urbanised landscapes invariably focus on measures of land use or land cover and associated functional or physical traits. However, such one-dimensional perspectives do not accurately capture the character and complexity of the landscapes in which urban inhabitants live. The new approach presented in this paper demonstrates how open-source, high spatial and temporal resolution data with global coverage can be used to measure and represent the landscape qualities of urban environments. Through going beyond simple metrics of quantity, such as percentage green and blue cover, it is now possible to explore the extent to which landscape quality helps to unpick the mixed evidence presented in the literature on the benefits of urban nature to human well-being. Here we present a landscape approach, employing remote sensing, GIS and data reduction techniques to map urban green infrastructure elements in a large U.K. city region. Comparison with existing urban datasets demonstrates considerable improvement in terms of coverage and thematic detail. The characterisation of landscapes, using census tracts as spatial units, and subsequent exploration of associations with social–ecological attributes highlights the further detail that can be uncovered by the approach. For example, eight urban landscape types identified for the case study city exhibited associations with distinct socioeconomic conditions accountable not only to quantities but also qualities of green and blue space. The identification of individual landscape features through simultaneous measures of land use and land cover demonstrated unique and significant associations between the former and indicators of human health and ecological condition. The approach may therefore provide a promising basis for developing further insight into processes and characteristics that affect human health and well-being in urban areas, both in the United Kingdom and beyond.
Matthew Dennis; David Barlow; Gina Cavan; Penny A. Cook; Anna Gilchrist; John Handley; Philip James; Jessica Thompson; Konstantinos Tzoulas; C. Philip Wheater; Sarah Lindley. Mapping Urban Green Infrastructure: A Novel Landscape-Based Approach to Incorporating Land Use and Land Cover in the Mapping of Human-Dominated Systems. Land 2018, 7, 17 .
AMA StyleMatthew Dennis, David Barlow, Gina Cavan, Penny A. Cook, Anna Gilchrist, John Handley, Philip James, Jessica Thompson, Konstantinos Tzoulas, C. Philip Wheater, Sarah Lindley. Mapping Urban Green Infrastructure: A Novel Landscape-Based Approach to Incorporating Land Use and Land Cover in the Mapping of Human-Dominated Systems. Land. 2018; 7 (1):17.
Chicago/Turabian StyleMatthew Dennis; David Barlow; Gina Cavan; Penny A. Cook; Anna Gilchrist; John Handley; Philip James; Jessica Thompson; Konstantinos Tzoulas; C. Philip Wheater; Sarah Lindley. 2018. "Mapping Urban Green Infrastructure: A Novel Landscape-Based Approach to Incorporating Land Use and Land Cover in the Mapping of Human-Dominated Systems." Land 7, no. 1: 17.
Fanhua Kong; Changfeng Sun; Fengfeng Liu; Haiwei Yin; Fei Jiang; Yingxia Pu; Gina Cavan; Cynthia Skelhorn; Ariane Middel; Iryna Dronova. Energy saving potential of fragmented green spaces due to their temperature regulating ecosystem services in the summer. Applied Energy 2016, 183, 1428 -1440.
AMA StyleFanhua Kong, Changfeng Sun, Fengfeng Liu, Haiwei Yin, Fei Jiang, Yingxia Pu, Gina Cavan, Cynthia Skelhorn, Ariane Middel, Iryna Dronova. Energy saving potential of fragmented green spaces due to their temperature regulating ecosystem services in the summer. Applied Energy. 2016; 183 ():1428-1440.
Chicago/Turabian StyleFanhua Kong; Changfeng Sun; Fengfeng Liu; Haiwei Yin; Fei Jiang; Yingxia Pu; Gina Cavan; Cynthia Skelhorn; Ariane Middel; Iryna Dronova. 2016. "Energy saving potential of fragmented green spaces due to their temperature regulating ecosystem services in the summer." Applied Energy 183, no. : 1428-1440.
C. A. O. Akinbami; J. E. Olawoye; F. A. Adesina; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Rural Women Belief System and Attitude Toward Climate Change Mitigation and Adaptation Strategies in Nigeria. Climate Change Management 2016, 49 -69.
AMA StyleC. A. O. Akinbami, J. E. Olawoye, F. A. Adesina, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Rural Women Belief System and Attitude Toward Climate Change Mitigation and Adaptation Strategies in Nigeria. Climate Change Management. 2016; ():49-69.
Chicago/Turabian StyleC. A. O. Akinbami; J. E. Olawoye; F. A. Adesina; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Rural Women Belief System and Attitude Toward Climate Change Mitigation and Adaptation Strategies in Nigeria." Climate Change Management , no. : 49-69.
Paula Mussetta; Sandra Turbay; Amber Fletcher; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Adaptive Strategies Building Resilience to Climate Variability in Argentina, Canada and Colombia. Climate Change Management 2016, 225 -240.
AMA StylePaula Mussetta, Sandra Turbay, Amber Fletcher, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Adaptive Strategies Building Resilience to Climate Variability in Argentina, Canada and Colombia. Climate Change Management. 2016; ():225-240.
Chicago/Turabian StylePaula Mussetta; Sandra Turbay; Amber Fletcher; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Adaptive Strategies Building Resilience to Climate Variability in Argentina, Canada and Colombia." Climate Change Management , no. : 225-240.
Mariyana Nikolova; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Adaptation of the Bulgarian Water Sector to Climate Change Extremes. Climate Change Management 2016, 241 -255.
AMA StyleMariyana Nikolova, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Adaptation of the Bulgarian Water Sector to Climate Change Extremes. Climate Change Management. 2016; ():241-255.
Chicago/Turabian StyleMariyana Nikolova; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Adaptation of the Bulgarian Water Sector to Climate Change Extremes." Climate Change Management , no. : 241-255.
Vanda Viegas; Ulisses M. Azeiteiro; Fátima Alves; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Fostering Resilience Among Artisanal Fishers in Peniche (Portugal): An Exploratory Study. Climate Change Management 2016, 305 -327.
AMA StyleVanda Viegas, Ulisses M. Azeiteiro, Fátima Alves, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Fostering Resilience Among Artisanal Fishers in Peniche (Portugal): An Exploratory Study. Climate Change Management. 2016; ():305-327.
Chicago/Turabian StyleVanda Viegas; Ulisses M. Azeiteiro; Fátima Alves; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Fostering Resilience Among Artisanal Fishers in Peniche (Portugal): An Exploratory Study." Climate Change Management , no. : 305-327.
C. J. Stigter; Yunita T. Winarto; Muki Wicaksono; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Towards Enhanced Resilience: Monthly Updated Seasonal Rainfall “Scenarios” as Climate Predictions for Farmers in Indonesia. Climate Change Management 2016, 289 -303.
AMA StyleC. J. Stigter, Yunita T. Winarto, Muki Wicaksono, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Towards Enhanced Resilience: Monthly Updated Seasonal Rainfall “Scenarios” as Climate Predictions for Farmers in Indonesia. Climate Change Management. 2016; ():289-303.
Chicago/Turabian StyleC. J. Stigter; Yunita T. Winarto; Muki Wicaksono; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Towards Enhanced Resilience: Monthly Updated Seasonal Rainfall “Scenarios” as Climate Predictions for Farmers in Indonesia." Climate Change Management , no. : 289-303.
Paolina Ferrulli; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Resilient Architectural Design: Considerations in the Design of Airports to Withstand Climate Change Effects. Climate Change Management 2016, 381 -393.
AMA StylePaolina Ferrulli, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Resilient Architectural Design: Considerations in the Design of Airports to Withstand Climate Change Effects. Climate Change Management. 2016; ():381-393.
Chicago/Turabian StylePaolina Ferrulli; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Resilient Architectural Design: Considerations in the Design of Airports to Withstand Climate Change Effects." Climate Change Management , no. : 381-393.
Margot A. Hurlbert; Paula Mussetta; Sandra Turbay; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Canadian, Argentinean, and Colombian Programs Building Resiliency to Extreme Events. Climate Change Management 2016, 425 -442.
AMA StyleMargot A. Hurlbert, Paula Mussetta, Sandra Turbay, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Canadian, Argentinean, and Colombian Programs Building Resiliency to Extreme Events. Climate Change Management. 2016; ():425-442.
Chicago/Turabian StyleMargot A. Hurlbert; Paula Mussetta; Sandra Turbay; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Canadian, Argentinean, and Colombian Programs Building Resiliency to Extreme Events." Climate Change Management , no. : 425-442.
Dumisani Chirambo; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Integrating Microfinance, Climate Finance and Climate Change Adaptation: A Sub-Saharan Africa Perspective. Climate Change Management 2016, 195 -207.
AMA StyleDumisani Chirambo, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Integrating Microfinance, Climate Finance and Climate Change Adaptation: A Sub-Saharan Africa Perspective. Climate Change Management. 2016; ():195-207.
Chicago/Turabian StyleDumisani Chirambo; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Integrating Microfinance, Climate Finance and Climate Change Adaptation: A Sub-Saharan Africa Perspective." Climate Change Management , no. : 195-207.
Chandan Kumar Jha; Vijaya Gupta; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Climate Change Adaptation in Indian Agriculture- Assessing Farmers’ Perception and Adaptive Choices. Climate Change Management 2016, 275 -288.
AMA StyleChandan Kumar Jha, Vijaya Gupta, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Climate Change Adaptation in Indian Agriculture- Assessing Farmers’ Perception and Adaptive Choices. Climate Change Management. 2016; ():275-288.
Chicago/Turabian StyleChandan Kumar Jha; Vijaya Gupta; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Climate Change Adaptation in Indian Agriculture- Assessing Farmers’ Perception and Adaptive Choices." Climate Change Management , no. : 275-288.
Lindsay P. Galway; Margot W. Parkes; Kitty K. Corbett; Diana M. Allen; Timothy K. Takaro; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Climate Change Frames in Public Health and Water Resource Management: Towards Intersectoral Climate Change Adaptation. Climate Change Management 2016, 35 -48.
AMA StyleLindsay P. Galway, Margot W. Parkes, Kitty K. Corbett, Diana M. Allen, Timothy K. Takaro, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Climate Change Frames in Public Health and Water Resource Management: Towards Intersectoral Climate Change Adaptation. Climate Change Management. 2016; ():35-48.
Chicago/Turabian StyleLindsay P. Galway; Margot W. Parkes; Kitty K. Corbett; Diana M. Allen; Timothy K. Takaro; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Climate Change Frames in Public Health and Water Resource Management: Towards Intersectoral Climate Change Adaptation." Climate Change Management , no. : 35-48.
Adam Ceesay; Mathias Wolff; Ebrima Njie; Matty Kah; Tidiani Koné; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Adapting to the Inevitable: The Case of Tanbi Wetland National Park, The Gambia. Climate Change Management 2016, 257 -274.
AMA StyleAdam Ceesay, Mathias Wolff, Ebrima Njie, Matty Kah, Tidiani Koné, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Adapting to the Inevitable: The Case of Tanbi Wetland National Park, The Gambia. Climate Change Management. 2016; ():257-274.
Chicago/Turabian StyleAdam Ceesay; Mathias Wolff; Ebrima Njie; Matty Kah; Tidiani Koné; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Adapting to the Inevitable: The Case of Tanbi Wetland National Park, The Gambia." Climate Change Management , no. : 257-274.
Rana I. Connelly; Pınar G. Bal; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Local Networks of Resilience and Climate Adaptation: The Case of Istanbul. Climate Change Management 2016, 109 -123.
AMA StyleRana I. Connelly, Pınar G. Bal, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Local Networks of Resilience and Climate Adaptation: The Case of Istanbul. Climate Change Management. 2016; ():109-123.
Chicago/Turabian StyleRana I. Connelly; Pınar G. Bal; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Local Networks of Resilience and Climate Adaptation: The Case of Istanbul." Climate Change Management , no. : 109-123.
Jane A. Okalebo; Robert J. Oglesby; Song Feng; Kenneth Hubbard; Ayse Kilic; Michael Hayes; Cynthia Hays; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. An Evaluation of the Community Land Model (Version 3.5) and Noah Land Surface Models for Temperature and Precipitation Over Nebraska (Central Great Plains): Implications for Agriculture in Simulations of Future Climate Change and Adaptation. Climate Change Management 2016, 21 -34.
AMA StyleJane A. Okalebo, Robert J. Oglesby, Song Feng, Kenneth Hubbard, Ayse Kilic, Michael Hayes, Cynthia Hays, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. An Evaluation of the Community Land Model (Version 3.5) and Noah Land Surface Models for Temperature and Precipitation Over Nebraska (Central Great Plains): Implications for Agriculture in Simulations of Future Climate Change and Adaptation. Climate Change Management. 2016; ():21-34.
Chicago/Turabian StyleJane A. Okalebo; Robert J. Oglesby; Song Feng; Kenneth Hubbard; Ayse Kilic; Michael Hayes; Cynthia Hays; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "An Evaluation of the Community Land Model (Version 3.5) and Noah Land Surface Models for Temperature and Precipitation Over Nebraska (Central Great Plains): Implications for Agriculture in Simulations of Future Climate Change and Adaptation." Climate Change Management , no. : 21-34.
Christian Ploberger; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Towards Long-Term Resilience: The Challenge of Integrating Climate Change Related Risks into a Risk Analysis Framework. Climate Change Management 2016, 369 -379.
AMA StyleChristian Ploberger, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Towards Long-Term Resilience: The Challenge of Integrating Climate Change Related Risks into a Risk Analysis Framework. Climate Change Management. 2016; ():369-379.
Chicago/Turabian StyleChristian Ploberger; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Towards Long-Term Resilience: The Challenge of Integrating Climate Change Related Risks into a Risk Analysis Framework." Climate Change Management , no. : 369-379.
Ulrike Lehr; Anne Nieters; Thomas Drosdowski; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Extreme Weather Events and the German Economy: The Potential for Climate Change Adaptation. Climate Change Management 2016, 125 -141.
AMA StyleUlrike Lehr, Anne Nieters, Thomas Drosdowski, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Extreme Weather Events and the German Economy: The Potential for Climate Change Adaptation. Climate Change Management. 2016; ():125-141.
Chicago/Turabian StyleUlrike Lehr; Anne Nieters; Thomas Drosdowski; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Extreme Weather Events and the German Economy: The Potential for Climate Change Adaptation." Climate Change Management , no. : 125-141.
Ad Jeuken; Laurène Bouaziz; Gerald Corzo; Leonardo Alfonso; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. Analyzing Needs for Climate Change Adaptation in the Magdalena River Basin in Colombia. Climate Change Management 2016, 329 -344.
AMA StyleAd Jeuken, Laurène Bouaziz, Gerald Corzo, Leonardo Alfonso, Walter Leal Filho, Haruna Musa, Gina Cavan, Paul O'hare, Julia Seixas. Analyzing Needs for Climate Change Adaptation in the Magdalena River Basin in Colombia. Climate Change Management. 2016; ():329-344.
Chicago/Turabian StyleAd Jeuken; Laurène Bouaziz; Gerald Corzo; Leonardo Alfonso; Walter Leal Filho; Haruna Musa; Gina Cavan; Paul O'hare; Julia Seixas. 2016. "Analyzing Needs for Climate Change Adaptation in the Magdalena River Basin in Colombia." Climate Change Management , no. : 329-344.