{"query_echo":{"q":"","filters":{"analysis_type":["empirical orthogonal function analysis"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'empirical orthogonal function analysis' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":1,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=empirical+orthogonal+function+analysis","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-000001","url":"https://climateinsightsdirectory.org/document/iai-000001","title":"Interdecadal variability and extreme precipitation events in South America during the monsoon season","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"research paper","language":"en","date_published":"2025-01-13","source_url":"https://iai.int/es/pub_acad/interdecadal-variability-and-extreme-precipitation-events-in-south-america-during-the-monsoon-season/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","analysis_type"],"summary":{"text":"The study uses a rotated empirical orthogonal function analysis of data from 1950-2009 to examine interdecadal variability in South American monsoon precipitation. It finds that interdecadal oscillations have a significantly greater relative impact on extreme daily rainfall than on moderate or light rainfall, with this impact being more linear during the spring than the summer.","ai_generated":true,"unit":"iai-000001#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The study confirms the robustness of interdecadal variability modes of precipitation during the monsoon season by using a data set spanning 1950-2009, finding results consistent with previous research.","ai_generated":true,"unit":"iai-000001#insight-1","date_modified":"2026-10-23"},{"text":"Analysis using the Kolmogorov-Smirnov test indicates that daily precipitation from opposite phases of interdecadal modes belongs to different frequency distributions, with a significance level better than 0.01 in regions with high factor loadings.","ai_generated":true,"unit":"iai-000001#insight-2","date_modified":"2026-10-23"},{"text":"Interdecadal oscillations exert a much stronger relative influence on extreme daily rainfall ranges compared to light and moderate rainfall, and this effect is more linear in the spring than in the summer.","ai_generated":true,"unit":"iai-000001#insight-3","date_modified":"2026-10-23"}],"climate_tags":[],"geography_discussed":[],"frame_perspective":[],"analysis_type":["statistical analysis","empirical orthogonal function analysis"]}]}