{"query_echo":{"q":"","filters":{"analysis_type":["regional modeling"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'regional modeling' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":3,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=regional+modeling","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"iai-000145","url":"https://climateinsightsdirectory.org/document/iai-000145","title":"Ciclo del nitrógeno en América Latina: impulsores, impactos y vulnerabilidades","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"executive summary","language":"es","date_published":"2024-09-22","source_url":"https://iai.int/es/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The project establishes a Nitrogen, Society, and Environment Network (Nnet) to study the impacts of human activity on the nitrogen cycle across various Latin American ecosystems. It integrates empirical measurements of biological nitrogen fixation, atmospheric deposition, and fertilizer use with regional modeling to inform policy and environmental management.","ai_generated":true,"unit":"iai-000145#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"In Mexico, measurements of ∂15-N abundance indicate that between 30% and 50% of the nitrogen found in native plants is biologically fixed, with established vegetation containing 70-100 kg N /ha and an annual litterfall rotation of 20-30 kg N /ha/year.","ai_generated":true,"unit":"iai-000145#insight-1","date_modified":"2026-10-23"},{"text":"Biological nitrogen fixation (BNF) in Chilean forests was found to be extremely low, with further reductions caused by copper mining pollution affecting the nitrogen cycle.","ai_generated":true,"unit":"iai-000145#insight-2","date_modified":"2026-10-23"},{"text":"Nitrogen deposition in northern Argentina is approximately 8 kg N /ha/year. In the state of São Paulo, Brazil, air pollutant maps show high concentrations of NOx driven by the city and adjacent industrial areas, while rural and livestock establishments contribute to NH3 levels.","ai_generated":true,"unit":"iai-000145#insight-3","date_modified":"2026-10-23"},{"text":"Analysis of nitrogen data from Venezuelan rivers indicates contamination levels 60 times higher than baseline concentrations found in the Amazonas and Orinoco rivers.","ai_generated":true,"unit":"iai-000145#insight-4","date_modified":"2026-10-23"},{"text":"In Bolivia, the project is analyzing the expansion of soy production to determine future potential impacts regarding increased fertilizer use, soil degradation, and water pollution, including the crop's water footprint.","ai_generated":true,"unit":"iai-000145#insight-5","date_modified":"2026-10-23"}],"climate_tags":["land-use change","water pollution","bioenergy"],"geography_discussed":["Mexico","Chile","Bolivia","Brazil","Argentina","Venezuela","São Paulo"],"frame_perspective":[],"analysis_type":["environmental assessment","regional modeling"]},{"id":"iai-000183","url":"https://climateinsightsdirectory.org/document/iai-000183","title":"Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"executive summary","language":"en","date_published":"2024-09-22","source_url":"https://iai.int/en/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The project aims to create a regional understanding of the nitrogen cycle in Latin America by measuring biological nitrogen fixation, atmospheric deposition, and the impacts of land-use changes. Initial findings include high nitrogen pollution in Venezuelan rivers, low biological nitrogen fixation in Chilean forests affected by copper mining, and the influence of urban and industrial areas on NOx concentrations in São Paulo. The initiative seeks to provide guidelines for policymakers to manage nitrogen and minimize environmental degradation.","ai_generated":true,"unit":"iai-000183#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"In Mexico, measurements of ∂15-N abundance indicate that 30-50% of nitrogen in native plants is biologically fixed, with standing vegetation containing 70-100 kg N /ha and a turnover of 20-30 kg N /ha/yr.","ai_generated":true,"unit":"iai-000183#insight-1","date_modified":"2026-10-23"},{"text":"Biological Nitrogen Fixation (BNF) in Chilean forests is extremely low and is further inhibited by contaminants from copper mining.","ai_generated":true,"unit":"iai-000183#insight-2","date_modified":"2026-10-23"},{"text":"Nitrogen deposition in Northern Argentina is approximately 8 kg N /ha/y. In São Paulo State, maps of air contaminants show high NOx concentrations driven by the city and industrial areas, while rural animal production sites contribute NH3.","ai_generated":true,"unit":"iai-000183#insight-3","date_modified":"2026-10-23"},{"text":"Analysis of river data from Venezuela reveals that some rivers are polluted with nitrogen concentrations 60 times higher than background levels in the Amazon and Orinoco.","ai_generated":true,"unit":"iai-000183#insight-4","date_modified":"2026-10-23"},{"text":"The project is analyzing the expansion of soy production in Bolivia to assess potential future impacts including water contamination, soil degradation, and increased fertilizer use.","ai_generated":true,"unit":"iai-000183#insight-5","date_modified":"2026-10-23"}],"climate_tags":["land-use change","water pollution"],"geography_discussed":["Mexico","Chile","Bolivia","Brazil","Argentina","São Paulo","Venezuela","United States"],"frame_perspective":[],"analysis_type":["empirical measurement","regional modeling","literature review"]},{"id":"iai-000488","url":"https://climateinsightsdirectory.org/document/iai-000488","title":"The impact of land cover and land use changes on the hydro-climate of the La Plata Basin (CRN2094)","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"fact sheet","language":"en","date_published":"2010-03","source_url":"https://iai.int/admin/site/sites/default/files/uploads/2014/03/CRN2_94.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The project assesses the effects of land use and cover changes on the La Plata Basin's hydroclimate, specifically focusing on the intensity and length of floods and droughts, as well as soil moisture, infiltration, and runoff. Using 1980-2005 datasets and a Weather Research and Forecast (WRF) modeling system, the research tests various land cover scenarios and introduces Ecosystem Functional Types (EFTs) to replace time-fixed land cover types in regional models.","ai_generated":true,"unit":"iai-000488#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The project utilizes datasets from 1980-2005 to analyze the physical mechanisms and impacts of land use and cover changes on the La Plata Basin's hydro-climate, employing a Weather Research and Forecast (WRF) modeling system with a nested grid over the basin to simulate scenarios ranging from no agriculture to intensive arable agriculture.","ai_generated":true,"unit":"iai-000488#insight-1","date_modified":"2026-10-23"},{"text":"Researchers have developed a new methodology using Ecosystem Functional Types (EFTs) to investigate year-to-year evolution in land cover, intended to replace traditional time-fixed land cover types within regional models.","ai_generated":true,"unit":"iai-000488#insight-2","date_modified":"2026-10-23"}],"climate_tags":["agriculture","forestry","climate change","flood","drought"],"geography_discussed":["Argentina","Bolivia","Brazil","Paraguay","Uruguay"],"frame_perspective":[],"analysis_type":["regional modeling","remote sensing"]}]}