{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:24.728540", "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-Apr-13_to_2026-Apr-21_114.5_4.0"}, "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": 2026040001724}, "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 13 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 21 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 104875.46891688932}, "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": ["Brunei Darussalam", "Malaysia"]}, "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 China 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": 4.0}, "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": 114.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "114.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 2.97], [111.75, 3.5], [111.97, 4.03], [112.5, 4.25], [112.75, 4.15], [113.0, 4.25], [113.25, 4.15], [113.5, 4.25], [113.93, 4.07], [113.82, 4.32], [113.47, 4.47], [113.25, 5.0], [113.47, 5.53], [114.0, 5.75], [114.25, 5.65], [114.5, 5.75], [115.03, 5.53], [115.25, 5.0], [115.15, 4.75], [115.25, 4.5], [115.03, 3.97], [114.5, 3.75], [114.07, 3.93], [114.25, 3.5], [114.03, 2.97], [113.5, 2.75], [113.25, 2.85], [113.0, 2.75], [112.75, 2.85], [112.5, 2.75], [111.97, 2.97]]]]}, "2026-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.97, 4.53], [111.5, 4.75], [111.75, 4.65], [111.82, 4.68], [111.97, 5.03], [112.32, 5.18], [112.47, 5.53], [113.0, 5.75], [113.25, 5.65], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.25, 5.65], [114.5, 5.75], [115.03, 5.53], [115.25, 5.0], [115.15, 4.75], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.03, 3.47], [114.5, 3.25], [114.25, 3.35], [114.18, 3.32], [114.03, 2.97], [113.68, 2.82], [113.53, 2.47], [113.0, 2.25], [112.47, 2.47], [112.32, 2.82], [112.0, 2.96], [111.5, 2.75], [110.97, 2.97], [110.75, 3.5], [110.85, 3.75], [110.75, 4.0], [110.97, 4.53]]]]}, "2026-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.47, 4.53], [111.0, 4.75], [111.25, 4.65], [111.5, 4.75], [111.75, 4.65], [111.82, 4.68], [111.97, 5.03], [112.32, 5.18], [112.47, 5.53], [113.0, 5.75], [113.25, 5.65], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.25, 5.65], [114.5, 5.75], [115.03, 5.53], [115.25, 5.0], [115.15, 4.75], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.0, 2.75], [113.75, 2.85], [113.68, 2.82], [113.53, 2.47], [113.0, 2.25], [112.47, 2.47], [112.32, 2.82], [112.0, 2.96], [111.5, 2.75], [111.25, 2.85], [111.0, 2.75], [110.47, 2.97], [110.25, 3.5], [110.35, 3.75], [110.25, 4.0], [110.47, 4.53]]]]}, "2026-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.47, 4.53], [111.0, 4.75], [111.25, 4.65], [111.5, 4.75], [111.75, 4.65], [111.82, 4.68], [111.97, 5.03], [112.32, 5.18], [112.47, 5.53], [113.0, 5.75], [113.25, 5.65], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.25, 5.65], [114.5, 5.75], [115.03, 5.53], [115.25, 5.0], [115.15, 4.75], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.13, 2.8], [114.25, 2.5], [114.15, 2.25], [114.25, 2.0], [114.03, 1.47], [113.5, 1.25], [113.25, 1.35], [113.0, 1.25], [112.47, 1.47], [112.25, 2.0], [112.43, 2.43], [112.0, 2.25], [111.47, 2.47], [111.32, 2.82], [111.25, 2.85], [111.0, 2.75], [110.47, 2.97], [110.25, 3.5], [110.35, 3.75], [110.25, 4.0], [110.47, 4.53]]]]}, "2026-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.47, 4.53], [111.0, 4.75], [111.25, 4.65], [111.5, 4.75], [111.75, 4.65], [111.82, 4.68], [111.97, 5.03], [112.5, 5.25], [112.75, 5.15], [113.0, 5.25], [113.25, 5.15], [113.5, 5.25], [113.75, 5.15], [114.0, 5.25], [114.25, 5.15], [114.5, 5.25], [115.03, 5.03], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.13, 2.8], [114.25, 2.5], [114.15, 2.25], [114.25, 2.0], [114.03, 1.47], [113.5, 1.25], [113.25, 1.35], [113.0, 1.25], [112.75, 1.35], [112.5, 1.25], [112.25, 1.35], [112.18, 1.32], [112.03, 0.97], [111.5, 0.75], [110.97, 0.97], [110.75, 1.5], [110.97, 2.03], [111.32, 2.18], [111.46, 2.5], [111.32, 2.82], [111.25, 2.85], [111.0, 2.75], [110.47, 2.97], [110.25, 3.5], [110.35, 3.75], [110.25, 4.0], [110.47, 4.53]]]]}, "2026-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, 3.53], [112.0, 3.75], [112.53, 3.53], [112.75, 3.0], [112.63, 2.7], [112.75, 2.65], [112.82, 2.68], [112.97, 3.03], [113.5, 3.25], [114.03, 3.03], [114.25, 2.5], [114.15, 2.25], [114.25, 2.0], [114.03, 1.47], [113.5, 1.25], [113.25, 1.35], [113.0, 1.25], [112.75, 1.35], [112.5, 1.25], [112.25, 1.35], [112.18, 1.32], [112.03, 0.97], [111.5, 0.75], [110.97, 0.97], [110.75, 1.5], [110.97, 2.03], [111.32, 2.18], [111.46, 2.5], [111.25, 3.0], [111.47, 3.53]]], [[[113.97, 3.47], [113.75, 4.0], [113.97, 4.53], [114.5, 4.75], [115.03, 4.53], [115.25, 4.0], [115.03, 3.47], [114.5, 3.25], [113.97, 3.47]]]]}, "2026-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.32, 3.18], [111.47, 3.53], [112.0, 3.75], [112.53, 3.53], [112.68, 3.18], [113.03, 3.03], [113.25, 2.5], [113.15, 2.25], [113.25, 2.0], [113.03, 1.47], [112.5, 1.25], [112.25, 1.35], [112.18, 1.32], [112.03, 0.97], [111.5, 0.75], [110.97, 0.97], [110.75, 1.5], [110.96, 2.0], [110.75, 2.5], [110.97, 3.03], [111.32, 3.18]]], [[[113.97, 3.47], [113.75, 4.0], [113.97, 4.53], [114.5, 4.75], [115.03, 4.53], [115.25, 4.0], [115.03, 3.47], [114.5, 3.25], [113.97, 3.47]]]]}, "2026-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.97, 1.97], [110.75, 2.5], [110.97, 3.03], [111.5, 3.25], [112.0, 3.04], [112.5, 3.25], [113.03, 3.03], [113.25, 2.5], [113.03, 1.97], [112.5, 1.75], [112.0, 1.96], [111.5, 1.75], [110.97, 1.97]]]]}, "2026-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.97, 1.97], [110.75, 2.5], [110.97, 3.03], [111.5, 3.25], [112.0, 3.04], [112.5, 3.25], [113.03, 3.03], [113.25, 2.5], [113.03, 1.97], [112.5, 1.75], [112.0, 1.96], [111.5, 1.75], [110.97, 1.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8761310847191908}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0582020186713827}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.140373060438435, 28.337819429427896, 28.292895609537823, 28.183386557442816, 28.11668656902549, 27.560459391276083, 27.8774454752604, 27.894602711995503, 28.25706507364913]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.33461405436202, 28.74107386271163, 28.78382008870443, 28.608080800374353, 28.60234858194991, 28.127547200520837, 28.401452636718773, 28.478017425537132, 28.67808558146163]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8224570655793096, 0.982319775871022, 0.9975370212851044, 1.04396574617255, 1.1221062594471778, 1.2232944779723596, 1.196669304267589, 1.1099108510853455, 1.460399289985702]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1175041027840393, 1.5074363746547306, 1.672455247830328, 1.8761310847191908, 1.715537140646063, 1.6611990703546553, 1.3806226100437016, 1.1487352067182428, 1.5827599337897027]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4054723316394757, 1.7060242024455565, 1.6487648723384454, 1.6103242071981345, 1.6377529842965302, 1.5440654007903478, 1.5294190294313261, 1.4384050524276843, 1.9234342135926117]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.491479615402462, 2.0131691914921097, 2.1412087393472774, 2.3540585105648826, 2.2020629981721296, 1.9506865917230962, 1.6845989283115177, 1.5052892022690119, 2.058827820292519]}}