{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:57.029699", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2015-May-04_to_2015-May-08_307.0_-32.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2015050000233}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "May 04 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 08 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 58173.5771695968}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Brazil", "Uruguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["South Atlantic Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -32.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 307.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, -31.0], [-54.53, -30.47], [-54.18, -30.32], 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[-50.75, -31.0], [-50.97, -31.53], [-51.32, -31.68], [-51.47, -32.03], [-51.82, -32.18], [-51.85, -32.25], [-51.75, -32.5], [-51.97, -33.03], [-52.5, -33.25], [-52.75, -33.15], [-53.0, -33.25], [-53.25, -33.15], [-53.5, -33.25], [-54.03, -33.03], [-54.25, -32.5], [-54.15, -32.25], [-54.25, -32.0], [-54.15, -31.75], [-54.18, -31.68], [-54.53, -31.53], [-54.75, -31.0]]]]}, "2015-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, -31.0], [-54.53, -30.47], [-54.18, -30.32], [-54.15, -30.25], [-54.25, -30.0], [-54.03, -29.47], [-53.5, -29.25], [-53.25, -29.35], [-53.0, -29.25], [-52.75, -29.35], [-52.5, -29.25], [-51.97, -29.47], [-51.82, -29.82], [-51.47, -29.97], [-51.32, -30.32], [-50.97, -30.47], [-50.75, -31.0], [-50.97, -31.53], [-51.32, -31.68], [-51.47, -32.03], [-51.82, -32.18], [-51.85, -32.25], [-51.75, -32.5], [-51.97, -33.03], [-52.5, -33.25], [-52.75, -33.15], [-53.0, -33.25], [-53.25, -33.15], [-53.5, -33.25], [-54.03, -33.03], [-54.25, -32.5], [-54.15, -32.25], [-54.25, -32.0], [-54.15, -31.75], [-54.18, -31.68], [-54.53, -31.53], [-54.75, -31.0]]]]}, "2015-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, -31.0], [-54.53, -30.47], [-54.18, -30.32], [-54.15, -30.25], [-54.25, -30.0], [-54.03, -29.47], [-53.5, -29.25], [-53.25, -29.35], [-53.0, -29.25], [-52.75, -29.35], [-52.5, -29.25], [-51.97, -29.47], [-51.82, -29.82], [-51.47, -29.97], [-51.25, -30.5], [-51.35, -30.75], [-51.25, -31.0], [-51.47, -31.53], [-51.82, -31.68], [-51.85, -31.75], [-51.75, -32.0], [-51.97, -32.53], [-52.32, -32.68], [-52.47, -33.03], [-53.0, -33.25], [-53.25, -33.15], [-53.5, -33.25], [-54.03, -33.03], [-54.25, -32.5], [-54.15, -32.25], [-54.25, -32.0], [-54.15, -31.75], [-54.18, -31.68], [-54.53, -31.53], [-54.75, -31.0]]]]}, "2015-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.0, -31.25], [-52.47, -31.47], [-52.25, -32.0], [-52.47, -32.53], [-53.0, -32.75], [-53.53, -32.53], [-53.75, -32.0], [-53.53, -31.47], [-53.0, -31.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.156389649569576}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.47554773990537}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.321891363336363, 11.416292568823849, 12.296940776185465, 12.052400038979272, 12.450114644545522]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.38458098532243, 9.948913019117356, 11.061418016138077, 10.603811084412769, 12.450114644545522]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.333116423677872, -5.166097883456971, -4.19771075800833, -4.159575699990892, -3.67822800152004]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.202978547320072, -6.156389649569576, -5.229271503318159, -4.682515833873765, -3.67822800152004]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5583123086535873, -1.8371137998975684, -1.5234141746159027, -1.4747822401774264, -1.3417542306535835]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7296430076615639, -2.0639671149191123, -1.906264305873849, -1.5731746156331528, -1.3417542306535835]}}