{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:44.769034", "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-Aug-29_to_2015-Sep-01_172.5_-35.5"}, "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": 2015080002866}, "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": "August 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 51201.390619019156}, "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": ["New Zealand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["New-Zealand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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 Pacific Ocean", "Tasman Sea"]}, "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": -35.5}, "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": 172.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "172.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 170.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 173.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.47, -32.47], [170.82, -32.32], [170.97, -31.97], [171.5, -31.75], [172.03, -31.97], [172.18, -32.32], [172.53, -32.47], [172.68, -32.82], [173.03, -32.97], [173.25, -33.5], [173.15, -33.75], [173.18, -33.82], [173.53, -33.97], [173.75, -34.5], [173.54, -35.0], [173.75, -35.5], [173.53, -36.03], [173.0, -36.25], [172.75, -36.15], [172.5, -36.25], [171.97, -36.03], [171.82, -35.68], [171.75, -35.65], [171.5, -35.75], [170.97, -35.53], [170.75, -35.0], [170.85, -34.75], [170.75, -34.5], [170.85, -34.25], [170.82, -34.18], [170.47, -34.03], [170.25, -33.5], [170.35, -33.25], [170.25, -33.0], [170.47, -32.47]]]]}, "2015-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.47, -32.47], [170.82, -32.32], [170.97, -31.97], [171.5, -31.75], [172.03, -31.97], [172.18, -32.32], [172.53, -32.47], [172.68, -32.82], [173.03, -32.97], [173.25, -33.5], [173.15, -33.75], [173.18, -33.82], [173.53, -33.97], [173.75, -34.5], [173.54, -35.0], [173.75, -35.5], [173.53, -36.03], [173.0, -36.25], [172.75, -36.15], [172.5, -36.25], [171.97, -36.03], [171.82, -35.68], [171.75, -35.65], [171.5, -35.75], [170.97, -35.53], [170.75, -35.0], [170.85, -34.75], [170.75, -34.5], [170.85, -34.25], [170.82, -34.18], [170.47, -34.03], [170.25, -33.5], [170.35, -33.25], [170.25, -33.0], [170.47, -32.47]]]]}, "2015-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.47, -32.47], [170.82, -32.32], [170.97, -31.97], [171.5, -31.75], [172.03, -31.97], [172.18, -32.32], [172.53, -32.47], [172.68, -32.82], [173.03, -32.97], [173.25, -33.5], [173.15, -33.75], [173.18, -33.82], [173.53, -33.97], [173.75, -34.5], [173.54, -35.0], [173.75, -35.5], [173.53, -36.03], [173.0, -36.25], [172.75, -36.15], [172.5, -36.25], [171.97, -36.03], [171.82, -35.68], [171.75, -35.65], [171.5, -35.75], [170.97, -35.53], [170.75, -35.0], [170.85, -34.75], [170.75, -34.5], [170.85, -34.25], [170.82, -34.18], [170.47, -34.03], [170.25, -33.5], [170.35, -33.25], [170.25, -33.0], [170.47, -32.47]]]]}, "2015-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.97, -36.03], [171.75, -35.5], [171.97, -34.97], [172.5, -34.75], [172.75, -34.85], [173.0, -34.75], [173.53, -34.97], [173.75, -35.5], [173.53, -36.03], [173.0, -36.25], [172.75, -36.15], [172.5, -36.25], [171.97, -36.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1658263483566316}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6212203793734206}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.96859834925192, 16.325031615034902, 16.075180836628192, 15.010521577741372]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.771406298666193, 17.240290439064268, 16.78389758007495, 15.07103839603377]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4874528673136183, 1.8478178732242072, 1.5693685542050162, 1.2114388131476233]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.731214216946114, 2.1658263483566316, 1.801647672770514, 1.2446516443969244]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4026701329470939, 1.8554184238756677, 1.5846769781003678, 1.2268264718348738]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6228631166845355, 2.1605885273542476, 1.8099900161070555, 1.2557416136297526]}}