{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:21.815568", "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": "2021-Apr-14_to_2021-Apr-18_307.5_6.0"}, "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": 2021040002055}, "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 14 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 18 2021"}, "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": 82924.51346214127}, "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": ["French Guiana"]}, "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": ["North 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": 6.0}, "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": 307.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.5\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": 310.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, 7.5], [-54.53, 8.03], [-54.0, 8.25], [-53.47, 8.03], 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[-50.25, 5.35], [-50.5, 5.25], [-50.75, 5.35], [-50.82, 5.32], [-50.97, 4.97], [-51.5, 4.75], [-52.03, 4.97], [-52.18, 5.32], [-52.25, 5.35], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-54.03, 4.97], [-54.25, 5.5], [-54.15, 5.75], [-54.25, 6.0], [-54.04, 6.5], [-54.18, 6.82], [-54.53, 6.97], [-54.75, 7.5]]]]}, "2021-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, 7.5], [-54.53, 8.03], [-54.0, 8.25], [-53.47, 8.03], [-53.32, 7.68], [-53.25, 7.65], [-53.0, 7.75], [-52.75, 7.65], [-52.5, 7.75], [-52.25, 7.65], [-52.0, 7.75], [-51.75, 7.65], [-51.5, 7.75], [-51.25, 7.65], [-51.18, 7.68], [-51.03, 8.03], [-50.5, 8.25], [-49.97, 8.03], [-49.82, 7.68], [-49.47, 7.53], [-49.25, 7.0], [-49.35, 6.75], [-49.25, 6.5], [-49.35, 6.25], [-49.25, 6.0], [-49.47, 5.47], [-50.0, 5.25], [-50.25, 5.35], [-50.5, 5.25], [-50.75, 5.35], [-50.82, 5.32], [-50.97, 4.97], [-51.5, 4.75], [-52.03, 4.97], [-52.18, 5.32], [-52.25, 5.35], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-54.03, 4.97], [-54.25, 5.5], [-54.15, 5.75], [-54.25, 6.0], [-54.04, 6.5], [-54.18, 6.82], [-54.53, 6.97], [-54.75, 7.5]]]]}, "2021-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.03, 6.53], [-53.5, 6.75], [-53.25, 6.65], [-53.0, 6.75], [-52.75, 6.65], [-52.5, 6.75], [-51.97, 6.53], [-51.75, 6.0], [-51.97, 5.47], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-54.03, 4.97], [-54.25, 5.5], [-54.15, 5.75], [-54.25, 6.0], [-54.03, 6.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.2320434726556755}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8383635673132707}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.471976217752797, 27.241033061471683, 27.338060799608172, 27.313800690628455, 27.148001041549833]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.663701153022203, 27.417555390155997, 27.56845882266697, 27.509473515799243, 27.212459690129492]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9666253250199253, 0.7243350796185145, 0.8502849884661651, 0.8169243342836126, 0.8242867093930613]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1237174169260697, 0.8512659802585176, 1.2320434726556755, 1.0984424434054176, 1.0366265633212493]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0622268874674865, 1.548774062556291, 1.74924197932649, 1.6858086182618863, 1.5081723414025758]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4116745659005945, 1.7913833094686973, 2.2058350186090134, 2.1089067916747455, 1.694813423621224]}}