{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:30.771740", "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": "2018-Apr-08_to_2018-Apr-16_147.0_-2.5"}, "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": 2018040001716}, "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 08 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 77153.63674442358}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Bismarck Sea", "South Pacific 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": -2.5}, "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": 147.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 145.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 148.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.0, -2.75], [146.53, -2.97], [146.75, -3.5], [146.53, -4.03], [146.0, -4.25], [145.47, -4.03], [145.25, -3.5], [145.47, -2.97], [146.0, -2.75]]]]}, "2018-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -2.97], [146.0, -2.75], [146.53, -2.97], [146.75, -3.5], [146.65, -3.75], [146.75, -4.0], [146.53, -4.53], [146.0, -4.75], [145.47, -4.53], [145.25, -4.0], [145.35, -3.75], [145.25, -3.5], [145.47, -2.97]]]]}, "2018-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -2.97], [146.0, -2.75], [146.53, -2.97], [146.75, -3.5], [146.65, -3.75], [146.75, -4.0], [146.53, -4.53], [146.0, -4.75], [145.47, -4.53], [145.25, -4.0], [145.35, -3.75], [145.25, -3.5], [145.47, -2.97]]]]}, "2018-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -2.97], [145.82, -2.82], [145.85, -2.75], [145.75, -2.5], [145.85, -2.25], [145.75, -2.0], [145.97, -1.47], [146.5, -1.25], [146.75, -1.35], [147.0, -1.25], [147.25, -1.35], [147.5, -1.25], [148.03, -1.47], [148.18, -1.82], [148.53, -1.97], [148.68, -2.32], [149.03, -2.47], [149.25, -3.0], [149.15, -3.25], [149.25, -3.5], [149.15, -3.75], [149.25, -4.0], [149.03, -4.53], [148.5, -4.75], [148.25, -4.65], [148.0, -4.75], [147.47, -4.53], [147.32, -4.18], [147.25, -4.15], [147.0, -4.25], [146.7, -4.13], [146.53, -4.53], [146.0, -4.75], [145.47, -4.53], [145.25, -4.0], [145.35, -3.75], [145.25, -3.5], [145.47, -2.97]]]]}, "2018-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -2.5], [145.47, -1.97], [145.82, -1.82], [145.97, -1.47], [146.5, -1.25], [146.75, -1.35], [147.0, -1.25], [147.25, -1.35], [147.5, -1.25], [148.03, -1.47], [148.18, -1.82], [148.53, -1.97], [148.68, -2.32], [149.03, -2.47], [149.25, -3.0], [149.15, -3.25], [149.25, -3.5], [149.15, -3.75], [149.25, -4.0], [149.03, -4.53], [148.5, -4.75], [148.25, -4.65], [148.0, -4.75], [147.47, -4.53], [147.32, -4.18], [147.25, -4.15], [147.0, -4.25], [146.47, -4.03], [146.32, -3.68], [145.97, -3.53], [145.82, -3.18], [145.47, -3.03], [145.25, -2.5]]]]}, "2018-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -2.5], [145.47, -1.97], [145.82, -1.82], [145.97, -1.47], [146.5, -1.25], [146.75, -1.35], [147.0, -1.25], [147.25, -1.35], [147.5, -1.25], [148.03, -1.47], [148.18, -1.82], [148.53, -1.97], [148.68, -2.32], [149.03, -2.47], [149.25, -3.0], [149.15, -3.25], [149.25, -3.5], [149.15, -3.75], [149.25, -4.0], [149.03, -4.53], [148.5, -4.75], [148.25, -4.65], [148.0, -4.75], [147.47, -4.53], [147.32, -4.18], [147.25, -4.15], [147.0, -4.25], [146.47, -4.03], [146.32, -3.68], [145.97, -3.53], [145.82, -3.18], [145.47, -3.03], [145.25, -2.5]]]]}, "2018-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -2.5], [145.47, -1.97], [145.82, -1.82], [145.97, -1.47], [146.5, -1.25], [147.03, -1.47], [147.18, -1.82], [147.53, -1.97], [147.75, -2.5], [147.65, -2.75], [147.75, -3.0], [147.54, -3.5], [147.75, -4.0], [147.65, -4.25], [147.75, -4.5], [147.53, 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anomaly recorded over entire duration", "value": 1.4296897375493813}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9588639793417821}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.1643707250243, 28.029555086643995, 28.022034704946975, 28.022337882638396, 28.041972316494878, 28.120545695504177, 27.978432240594657, 27.794907365578695, 28.34440708790237]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.1643707250243, 28.157047211958115, 28.13019433071537, 28.344781138300903, 28.37076779756825, 28.33320526280903, 28.218312729867023, 27.90505536451832, 28.505898425757835]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.013851115890418, 0.9026216229986517, 0.9061540673685045, 0.9213536815257186, 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2.0987622129932806, 2.150976617479388, 2.154118078736785, 2.076691679051467, 1.6794987965915544, 2.9634728692285504]}}