{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:02.937720", "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": "2025-Dec-07_to_2025-Dec-10_137.0_-2.0"}, "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": 2025120001449}, "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": "December 07 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2025"}, "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": 86516.40528627226}, "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", "S.E.Asia"]}, "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": ["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": -2.0}, "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": 137.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "137.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 136.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, -0.47], [141.5, -0.25], [142.0, -0.46], [142.5, -0.25], [143.03, -0.47], [143.25, -1.0], [143.15, -1.25], [143.25, -1.5], [143.15, -1.75], [143.25, -2.0], [143.03, -2.53], [142.5, -2.75], [141.97, -2.53], [141.75, -2.0], [141.53, -2.53], [141.0, -2.75], [140.47, -2.53], [140.25, -2.0], [140.47, -1.47], [140.88, -1.3], [140.75, -1.0], [140.97, -0.47]], [[141.85, -1.75], [141.8, -1.63], [141.63, -1.7], [141.75, -2.0], [141.85, -1.75]]]]}, "2025-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, 0.03], [136.5, 0.25], [137.0, 0.04], [137.5, 0.25], [138.03, 0.03], [138.18, -0.32], [138.25, -0.35], [138.5, -0.25], [139.03, -0.47], [139.18, -0.82], [139.3, -0.87], [139.47, -0.47], [140.0, -0.25], [140.25, -0.35], [140.5, -0.25], [140.75, -0.35], [141.0, -0.25], [141.25, -0.35], [141.5, -0.25], [142.0, -0.46], [142.5, -0.25], [143.03, -0.47], [143.25, -1.0], [143.15, -1.25], [143.25, -1.5], [143.15, -1.75], [143.25, -2.0], [143.03, -2.53], [142.68, -2.68], [142.65, -2.75], [142.75, -3.0], [142.53, -3.53], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.75, -2.65], [140.5, -2.75], [140.25, -2.65], [140.0, -2.75], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.0, -2.04], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.47, -2.53], [136.25, -2.0], [136.35, -1.75], [136.32, -1.68], [135.97, -1.53], [135.75, -1.0], [135.85, -0.75], [135.75, -0.5], [135.97, 0.03]], [[141.82, -1.82], [141.85, -1.75], [141.8, -1.63], [141.68, -1.68], [141.65, -1.75], [141.68, -1.82], [141.75, -1.85], [141.82, -1.82]]]]}, "2025-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, 0.03], [136.5, 0.25], [137.0, 0.04], [137.5, 0.25], [138.03, 0.03], [138.18, -0.32], [138.25, -0.35], [138.5, -0.25], [139.03, -0.47], [139.18, -0.82], [139.3, -0.87], [139.47, -0.47], [140.0, -0.25], [140.25, -0.35], [140.5, -0.25], [140.75, -0.35], [141.0, -0.25], [141.25, -0.35], [141.5, -0.25], [142.0, -0.46], [142.5, -0.25], [143.03, -0.47], [143.25, -1.0], [143.15, -1.25], [143.25, -1.5], [143.15, -1.75], [143.25, -2.0], [143.03, -2.53], [142.68, -2.68], [142.65, -2.75], [142.75, -3.0], [142.53, -3.53], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.75, -2.65], [140.5, -2.75], [140.25, -2.65], [140.0, -2.75], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.0, -2.04], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.47, -2.53], [136.25, -2.0], [136.35, -1.75], [136.32, -1.68], [135.97, -1.53], [135.75, -1.0], [135.85, -0.75], [135.75, -0.5], [135.97, 0.03]], [[141.82, -1.82], [141.85, -1.75], [141.8, -1.63], [141.68, -1.68], [141.65, -1.75], [141.68, -1.82], [141.75, -1.85], [141.82, -1.82]]]]}, "2025-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, 0.03], [136.5, 0.25], [137.0, 0.04], [137.5, 0.25], [138.03, 0.03], [138.18, -0.32], [138.25, -0.35], [138.5, -0.25], [139.03, -0.47], [139.18, -0.82], [139.3, -0.87], [139.47, -0.47], [140.0, -0.25], [140.25, -0.35], [140.5, -0.25], [140.75, -0.35], [141.0, -0.25], [141.53, -0.47], [141.75, -1.0], [141.65, -1.25], [141.75, -1.5], [141.65, -1.75], [141.68, -1.82], [141.75, -1.85], [142.0, -1.75], [142.53, -1.97], [142.75, -2.5], [142.65, -2.75], [142.75, -3.0], [142.53, -3.53], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.75, -2.65], [140.5, -2.75], [140.25, -2.65], [140.0, -2.75], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.0, -2.04], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.47, -2.53], [136.25, -2.0], [136.35, -1.75], [136.32, -1.68], [135.97, -1.53], [135.75, -1.0], [135.85, -0.75], [135.75, -0.5], [135.97, 0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.711391159190896}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0007893992348151}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.15396550496422, 28.225074659075062, 28.489522189185777, 28.182941267225488]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.223968760172568, 28.436462656656943, 29.047793324788415, 28.85709152221682]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7546921135808361, 0.9286680399494917, 1.1943857257118862, 0.9103388720223554]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7908088844502572, 1.2183858359121587, 1.711391159190896, 1.5027942092917783]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3995664449711192, 1.7643385643970777, 2.2923498244847047, 1.7504620780774027]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.435752110023707, 2.554173925752, 2.9659505034225786, 2.799167322550253]}}