{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-27 23:16:40.283804", "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": "2026-Aug-12_to_2026-Aug-15_175.5_-39.5"}, "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": 2026080001278}, "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 12 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2026"}, "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": 75552.19215140167}, "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"]}, "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": -39.5}, "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": 175.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "175.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 174.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 178.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.25, -39.5], [174.47, -38.97], [175.0, -38.75], [175.25, -38.85], [175.5, -38.75], [176.03, -38.97], [176.25, -39.5], [176.03, -40.03], [175.5, -40.25], [175.25, -40.15], [175.0, -40.25], [174.47, -40.03], [174.25, -39.5]]], [[[174.47, -36.47], [175.0, -36.25], [175.25, -36.35], [175.5, -36.25], [175.75, -36.35], [176.0, -36.25], [176.25, -36.35], [176.32, -36.32], [176.47, -35.97], [177.0, -35.75], [177.53, -35.97], [177.75, -36.5], [177.65, -36.75], [177.75, -37.0], [177.53, -37.53], [177.0, -37.75], [176.75, -37.65], [176.5, -37.75], [176.25, -37.65], [176.18, -37.68], [176.03, -38.03], [175.5, -38.25], [174.97, -38.03], [174.82, -37.68], [174.47, -37.53], [174.25, -37.0], [174.47, -36.47]]]]}, "2026-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.75, -39.0], [173.97, -38.47], [174.32, -38.32], [174.35, -38.25], [174.25, -38.0], [174.46, -37.5], [174.25, -37.0], [174.47, -36.47], [175.0, -36.25], [175.25, -36.35], [175.5, -36.25], [175.75, -36.35], [176.0, -36.25], [176.25, -36.35], [176.32, -36.32], [176.47, -35.97], [177.0, -35.75], [177.53, -35.97], [177.68, -36.32], [177.75, -36.35], [178.0, -36.25], [178.53, -36.47], [178.75, -37.0], [178.65, -37.25], [178.75, -37.5], [178.65, -37.75], [178.75, -38.0], [178.53, -38.53], [178.0, -38.75], [177.75, -38.65], [177.68, -38.68], [177.53, -39.03], [177.0, -39.25], [176.75, -39.15], [176.68, -39.18], [176.53, -39.53], [176.18, -39.68], [176.03, -40.03], [175.5, -40.25], [175.25, -40.15], [175.0, -40.25], [174.47, -40.03], [174.32, -39.68], [173.97, -39.53], [173.75, -39.0]]]]}, "2026-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.75, -39.0], [173.97, -38.47], [174.32, -38.32], [174.35, -38.25], [174.25, -38.0], [174.46, -37.5], [174.25, -37.0], [174.47, -36.47], [175.0, -36.25], [175.25, -36.35], [175.5, -36.25], [175.75, -36.35], [176.0, -36.25], [176.25, -36.35], [176.32, -36.32], [176.47, -35.97], [177.0, -35.75], [177.53, -35.97], [177.68, -36.32], [177.75, -36.35], [178.0, -36.25], [178.53, -36.47], [178.75, -37.0], [178.65, -37.25], [178.75, -37.5], [178.65, -37.75], [178.75, -38.0], [178.53, -38.53], [178.0, -38.75], [177.75, -38.65], [177.68, -38.68], [177.53, -39.03], [177.0, -39.25], [176.75, -39.15], [176.68, -39.18], [176.53, -39.53], [176.18, -39.68], [176.03, -40.03], [175.5, -40.25], [175.25, -40.15], [175.0, -40.25], [174.47, -40.03], [174.32, -39.68], [173.97, -39.53], [173.75, -39.0]]]]}, "2026-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.75, -39.0], [173.97, -38.47], [174.32, -38.32], [174.35, -38.25], [174.25, -38.0], [174.46, -37.5], [174.25, -37.0], [174.47, -36.47], [175.0, -36.25], [175.25, -36.35], [175.5, -36.25], [175.75, -36.35], [176.0, -36.25], [176.25, -36.35], [176.32, -36.32], [176.47, -35.97], [177.0, -35.75], [177.53, -35.97], [177.68, -36.32], [177.75, -36.35], [178.0, -36.25], [178.53, -36.47], [178.75, -37.0], [178.65, -37.25], [178.75, -37.5], [178.65, -37.75], [178.75, -38.0], [178.53, -38.53], [178.0, -38.75], [177.75, -38.65], [177.68, -38.68], [177.53, -39.03], [177.0, -39.25], [176.75, -39.15], [176.68, -39.18], [176.53, -39.53], [176.18, -39.68], [176.03, -40.03], [175.5, -40.25], [175.25, -40.15], [175.0, -40.25], [174.47, -40.03], [174.32, -39.68], [173.97, -39.53], [173.75, -39.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.4941086028293284}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.840178863829215}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.595908101399743, 13.013909214799185, 12.860547514884729, 12.683042719030936]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.479127502441429, 15.556208546956384, 15.313635762532556, 15.297607676188193]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.4114140844486465, 2.966661392656709, 2.874584566816298, 2.8037707292541576]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3287476498891237, 4.4941086028293284, 4.369001159524714, 3.9301405416551916]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4076549651458288, 1.570204934649878, 1.5791783840284022, 1.5736973528197225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.489211582944742, 1.8538774164819598, 2.0236323558261873, 2.026229581081245]}}