{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:44.650758", "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": "2022-Feb-11_to_2022-Feb-16_141.5_-9.5"}, "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": 2022020001825}, "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": "February 11 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 16 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 155597.70754685375}, "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": ["Australia", "Indonesia", "Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania", "Asia", "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": ["Arafura 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": -9.5}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 137.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[142.68, -9.32], [143.03, -9.47], [143.25, -10.0], [143.03, -10.53], [142.5, -10.75], [142.25, -10.65], [142.0, -10.75], [141.75, -10.65], [141.68, -10.68], [141.53, -11.03], [141.0, -11.25], [140.75, -11.15], [140.5, -11.25], [140.25, -11.15], [140.0, -11.25], [139.75, -11.15], [139.5, -11.25], [139.25, -11.15], [139.0, -11.25], [138.75, -11.15], [138.5, -11.25], [137.97, -11.03], [137.75, -10.5], [137.85, -10.25], [137.82, -10.18], [137.75, -10.15], [137.5, -10.25], [137.25, -10.15], [137.0, -10.25], [136.47, -10.03], [136.25, -9.5], [136.35, -9.25], [136.25, -9.0], [136.47, -8.47], [136.82, -8.32], [136.97, -7.97], [137.5, -7.75], [137.75, -7.85], [137.82, -7.82], [137.97, -7.47], [138.32, -7.32], [138.47, -6.97], [139.0, -6.75], [139.53, -6.97], [139.75, -7.5], [139.97, -6.97], [140.5, -6.75], [140.75, -6.85], [141.0, -6.75], [141.53, -6.97], [141.75, -7.5], [141.65, -7.75], [141.68, -7.82], [142.03, -7.97], [142.25, -8.5], [142.13, -8.8], [142.53, -8.97], [142.68, -9.32]], [[139.65, -7.75], [139.68, -7.82], [139.75, -7.85], [139.82, -7.82], [139.85, -7.75], [139.75, -7.5], [139.65, -7.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -10.0], [137.97, -9.47], [138.5, -9.25], [138.75, -9.35], [138.82, -9.32], [138.97, -8.97], [139.5, -8.75], [139.93, -8.93], [139.75, -8.5], [139.97, -7.97], [140.5, -7.75], [141.03, -7.97], [141.18, -8.32], [141.53, -8.47], [141.68, -8.82], [141.75, -8.85], [142.0, -8.75], [142.53, -8.97], [142.68, -9.32], [143.03, -9.47], [143.25, -10.0], [143.03, -10.53], [142.5, -10.75], [142.25, -10.65], [142.0, -10.75], [141.75, -10.65], [141.68, -10.68], [141.53, -11.03], [141.0, -11.25], [140.75, -11.15], [140.5, -11.25], [140.25, -11.15], [140.0, -11.25], [139.75, -11.15], [139.5, -11.25], [139.25, -11.15], [139.0, -11.25], [138.75, -11.15], [138.5, 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t2m anomaly recorded over entire duration", "value": 2.0817151915595105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.097087843408307}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.350163866362607, 28.3093767196587, 28.42590744640495, 28.12066081349525, 28.16957334647236, 27.938721078979313]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.60886421302962, 28.661540592500103, 28.78248660805059, 28.42148306217672, 28.708123808673747, 28.03145509328607]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0223459462626516, 1.0889725642303325, 1.211620259892955, 0.9775029497891924, 1.2094746990036782, 0.893840018504602]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2617565055040245, 1.3663432944698002, 1.9302623279974682, 1.4826027552774121, 2.0817151915595105, 1.0307942570367459]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7744996776262831, 1.8356634954679054, 2.007582247965745, 1.5581809021939772, 1.6784684594286865, 1.4361035239320135]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2949116272021324, 2.614046082030455, 2.8037526772145105, 1.8512448910374988, 2.4621742833285847, 1.573839539569178]}}