{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:00.625451", "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": "2023-Apr-12_to_2023-Apr-16_137.5_-1.5"}, "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": 2023040001808}, "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 12 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 77249.87918238295}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": -1.5}, "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": 137.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "137.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 134.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.75}, "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": {"2023-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.47, -1.53], [137.25, -1.0], [137.47, -0.47], [138.0, -0.25], [138.25, -0.35], [138.5, -0.25], [139.03, -0.47], [139.25, -1.0], [139.03, -1.53], [138.5, -1.75], [138.25, -1.65], [138.0, -1.75], [137.47, -1.53]]]]}, "2023-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.75, -1.0], [134.97, -0.47], [135.5, -0.25], [136.0, -0.46], [136.5, -0.25], [136.75, -0.35], [136.82, -0.32], [136.85, -0.25], [136.75, 0.0], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.53, 0.03], [138.68, -0.32], [139.03, -0.47], [139.18, -0.82], [139.25, -0.85], [139.5, -0.75], [140.03, -0.97], [140.18, -1.32], [140.53, -1.47], [140.68, -1.82], [140.75, -1.85], [141.0, -1.75], [141.53, -1.97], [141.75, -2.5], [141.53, -3.03], [141.0, -3.25], [140.75, -3.15], [140.5, -3.25], [139.97, -3.03], [139.82, -2.68], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [135.97, -2.53], [135.82, -2.18], [135.47, -2.03], [135.32, -1.68], [134.97, -1.53], [134.75, -1.0]]]]}, "2023-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.5, -0.25], [136.0, -0.46], [136.5, -0.25], [136.75, -0.35], [136.82, -0.32], [136.85, -0.25], [136.75, 0.0], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.53, 0.03], [138.68, -0.32], [139.03, -0.47], [139.18, -0.82], [139.25, -0.85], [139.5, -0.75], [140.03, -0.97], [140.18, -1.32], [140.53, -1.47], [140.68, -1.82], [140.75, -1.85], [141.0, -1.75], [141.53, -1.97], [141.75, -2.5], [141.53, -3.03], [141.0, -3.25], [140.75, -3.15], [140.5, -3.25], [139.97, -3.03], [139.82, -2.68], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [135.97, -2.53], [135.82, -2.18], [135.75, -2.15], [135.5, -2.25], [135.25, -2.15], [135.0, -2.25], [134.47, -2.03], [134.25, -1.5], [134.47, -0.97], [134.82, -0.82], [134.97, -0.47], [135.5, -0.25]]]]}, "2023-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.5, -0.25], [136.0, -0.46], [136.5, -0.25], [136.75, -0.35], [136.82, -0.32], [136.85, -0.25], [136.75, 0.0], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.53, 0.03], [138.68, -0.32], [139.03, -0.47], [139.18, -0.82], [139.25, -0.85], [139.5, -0.75], [140.03, -0.97], [140.18, -1.32], [140.53, -1.47], [140.68, -1.82], [140.75, -1.85], [141.0, -1.75], [141.53, -1.97], [141.75, -2.5], [141.53, -3.03], [141.0, -3.25], [140.75, -3.15], [140.5, -3.25], [139.97, -3.03], [139.82, -2.68], [139.75, -2.65], [139.5, -2.75], [138.97, -2.53], [138.82, -2.18], [138.75, -2.15], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [135.97, -2.53], [135.82, -2.18], 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evolution of mean t2m anomalies.", "value": [0.7239847847616545, 1.1322737995852108, 0.8610986042401418, 0.927147107956348, 1.0614841542805313]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7313884287793826, 1.3974102753257966, 1.1269184471296967, 1.4096232926658558, 1.5410321481451774]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3907636652868747, 2.292945074884741, 1.753329448989106, 1.9181463486216725, 2.2173960596512687]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4164448415411794, 2.826463940895403, 2.2532454546510503, 2.967304420546541, 3.0655426368431784]}}