{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:16.489887", "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": "2012-Apr-19_to_2012-Apr-23_305.5_3.5"}, "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": 2012040002405}, "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": "April 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 23 2012"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 74061.62880780084}, "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", "French Guiana", "Suriname"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": []}, "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": 3.5}, "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": 305.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.25}, "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": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, 3.68], [-53.03, 4.03], [-52.5, 4.25], [-51.97, 4.03], 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[-50.75, 1.5], [-50.97, 0.97], [-51.5, 0.75], [-51.75, 0.85], [-52.0, 0.75], [-52.25, 0.85], [-52.5, 0.75], [-53.03, 0.97], [-53.25, 1.5], [-53.15, 1.75], [-53.2, 1.88], [-53.5, 1.75], [-54.03, 1.97], [-54.18, 2.32], [-54.53, 2.47], [-54.68, 2.82], [-55.03, 2.97], [-55.25, 3.5]]]]}, "2012-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.25, 3.5], [-55.03, 4.03], [-54.68, 4.18], [-54.65, 4.25], [-54.75, 4.5], [-54.65, 4.75], [-54.75, 5.0], [-54.53, 5.53], [-54.0, 5.75], [-53.75, 5.65], [-53.5, 5.75], [-53.25, 5.65], [-53.0, 5.75], [-52.47, 5.53], [-52.25, 5.0], [-52.47, 4.47], [-52.82, 4.32], [-52.85, 4.25], [-52.82, 4.18], [-52.75, 4.15], [-52.5, 4.25], [-51.97, 4.03], [-51.75, 3.5], [-51.85, 3.25], [-51.82, 3.18], [-51.75, 3.15], [-51.5, 3.25], [-50.97, 3.03], [-50.75, 2.5], [-50.85, 2.25], [-50.75, 2.0], [-50.85, 1.75], [-50.75, 1.5], [-50.97, 0.97], [-51.5, 0.75], [-51.75, 0.85], [-52.0, 0.75], [-52.25, 0.85], [-52.5, 0.75], [-53.03, 0.97], [-53.25, 1.5], [-53.15, 1.75], [-53.2, 1.88], [-53.5, 1.75], [-54.03, 1.97], [-54.18, 2.32], [-54.53, 2.47], [-54.68, 2.82], [-55.03, 2.97], [-55.25, 3.5]]]]}, "2012-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.25, 3.5], [-55.03, 4.03], [-54.68, 4.18], [-54.65, 4.25], [-54.75, 4.5], [-54.65, 4.75], [-54.75, 5.0], [-54.53, 5.53], [-54.0, 5.75], [-53.75, 5.65], [-53.5, 5.75], [-53.25, 5.65], [-53.0, 5.75], [-52.47, 5.53], [-52.25, 5.0], [-52.47, 4.47], [-52.82, 4.32], [-52.85, 4.25], [-52.82, 4.18], [-52.47, 4.03], [-52.25, 3.5], [-52.47, 2.97], [-52.82, 2.82], [-52.97, 2.47], [-53.5, 2.25], [-53.75, 2.35], [-54.0, 2.25], [-54.53, 2.47], [-54.68, 2.82], [-55.03, 2.97], [-55.25, 3.5]]]]}, "2012-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.0, 4.75], [-53.75, 4.65], [-53.5, 4.75], [-52.97, 4.53], [-52.75, 4.0], [-52.97, 3.47], [-53.5, 3.25], [-53.75, 3.35], [-53.82, 3.32], [-53.97, 2.97], [-54.5, 2.75], [-55.03, 2.97], [-55.25, 3.5], [-55.03, 4.03], [-54.68, 4.18], [-54.53, 4.53], [-54.0, 4.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8602253570025482}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3198145547265177}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.769449546318867, 26.66834132012991, 26.577995089463172, 26.931362622874076, 26.82120779877249]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.001604982763013, 27.21143778108751, 27.029375857982984, 27.483773966146885, 27.091273885040152]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5596930137156426, 1.2908960208579188, 1.213236218982156, 1.3525497231347108, 1.2346477272244176]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8602253570025482, 1.5550614131502698, 1.6429280133082784, 1.7142999780737114, 1.3864892262196236]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8360699831748137, 1.546296614927774, 1.4822506227440144, 1.6744740400842242, 1.4943257670595642]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.303277752159108, 1.909330123798673, 1.8873120717351721, 2.0615939842250794, 1.6443832149377466]}}