{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:03.475712", "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-Jan-18_to_2026-Jan-29_143.5_-8.5"}, "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": 2026010002008}, "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": "January 18 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 12}, "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": 159078.24388111389}, "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", "Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "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": ["Coral 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": -8.5}, "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": 143.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "143.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 140.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -8.5], [145.47, -7.97], [146.0, -7.75], [146.53, -7.97], [146.68, -8.32], [146.75, -8.35], [147.0, -8.25], [147.53, -8.47], [147.75, -9.0], [147.53, -9.53], [147.0, -9.75], [146.75, -9.65], [146.5, -9.75], [145.97, -9.53], [145.82, -9.18], [145.47, -9.03], [145.25, -8.5]]]]}, "2026-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -8.5], [145.47, -7.97], [146.0, -7.75], [146.53, -7.97], [146.68, -8.32], [146.75, -8.35], [147.0, -8.25], [147.53, -8.47], [147.75, -9.0], [147.53, -9.53], [147.0, -9.75], [146.75, -9.65], [146.5, -9.75], [145.97, -9.53], [145.82, -9.18], [145.47, -9.03], [145.25, -8.5]]]]}, "2026-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.75, -8.0], [144.97, -7.47], [145.5, -7.25], [146.03, -7.47], [146.18, -7.82], [146.53, -7.97], [146.68, -8.32], [146.75, -8.35], [147.0, -8.25], [147.53, -8.47], [147.75, -9.0], [147.53, -9.53], [147.0, -9.75], [146.75, -9.65], [146.5, -9.75], [145.97, -9.53], [145.82, -9.18], [145.47, -9.03], [145.32, -8.68], [144.97, -8.53], [144.75, -8.0]]]]}, "2026-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.5, -7.25], [146.03, -7.47], [146.25, -8.0], [146.03, -8.53], [145.5, -8.75], [144.97, -8.53], [144.75, -8.0], [144.97, -7.47], [145.5, -7.25]]]]}, "2026-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.85, -8.25], [143.75, -8.0], [143.97, -7.47], [144.5, -7.25], [144.75, -7.35], [145.0, -7.25], [145.25, -7.35], [145.5, -7.25], [146.03, -7.47], [146.18, -7.82], [146.53, -7.97], [146.68, -8.32], [147.03, -8.47], [147.18, -8.82], [147.53, -8.97], [147.75, -9.5], [147.65, -9.75], [147.68, -9.82], [148.03, -9.97], [148.25, -10.5], [148.03, -11.03], [147.5, -11.25], [146.97, -11.03], [146.82, -10.68], [146.75, -10.65], [146.5, -10.75], [145.97, -10.53], [145.82, -10.18], [145.5, -10.04], [145.0, -10.25], [144.47, -10.03], [144.32, -9.68], [143.97, -9.53], [143.75, -9.0], [143.85, -8.75], [143.75, -8.5], [143.85, -8.25]]]]}, "2026-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.75, -7.0], [141.97, -6.47], [142.5, -6.25], [142.75, -6.35], [143.0, -6.25], [143.25, -6.35], [143.5, -6.25], [144.03, -6.47], [144.25, -7.0], [144.15, -7.25], [144.18, -7.32], [144.25, -7.35], [144.5, -7.25], [144.75, -7.35], [145.0, -7.25], [145.25, -7.35], [145.5, -7.25], [146.03, -7.47], [146.18, -7.82], [146.53, -7.97], [146.68, -8.32], [147.03, -8.47], [147.18, -8.82], [147.53, -8.97], [147.75, -9.5], [147.65, -9.75], [147.68, -9.82], [148.03, -9.97], [148.25, -10.5], [148.03, -11.03], [147.5, -11.25], [146.97, -11.03], [146.82, -10.68], [146.75, -10.65], [146.5, -10.75], [145.97, -10.53], [145.82, -10.18], [145.5, -10.04], [145.0, -10.25], [144.47, -10.03], [144.32, -9.68], [143.97, -9.53], [143.82, -9.18], [143.75, -9.15], [143.5, -9.25], [142.97, -9.03], [142.82, -8.68], [142.47, -8.53], [142.25, -8.0], [142.35, -7.75], [142.32, -7.68], [141.97, -7.53], [141.75, -7.0]]]]}, "2026-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.47, -7.47], [141.88, -7.3], [141.75, -7.0], [141.97, -6.47], [142.5, -6.25], [142.75, -6.35], [143.0, -6.25], [143.25, -6.35], [143.5, -6.25], [144.03, -6.47], [144.25, -7.0], [144.15, -7.25], [144.18, -7.32], [144.25, -7.35], [144.5, -7.25], [144.75, -7.35], [145.0, -7.25], [145.25, -7.35], [145.5, -7.25], [146.03, -7.47], [146.18, -7.82], [146.53, -7.97], [146.68, -8.32], [147.03, -8.47], [147.18, -8.82], [147.53, -8.97], [147.75, -9.5], [147.65, -9.75], [147.68, -9.82], [148.03, -9.97], [148.25, -10.5], [148.03, -11.03], [147.5, -11.25], [146.97, -11.03], [146.82, -10.68], [146.75, -10.65], [146.5, -10.75], [145.97, -10.53], [145.82, -10.18], [145.5, -10.04], [145.0, -10.25], [144.47, -10.03], [144.32, -9.68], [143.97, -9.53], [143.82, -9.18], [143.75, -9.15], [143.5, -9.25], [143.0, -9.04], [142.5, -9.25], [142.25, -9.15], [142.0, -9.25], [141.47, -9.03], [141.25, -8.5], [141.35, -8.25], [141.25, -8.0], [141.47, -7.47]]]]}, "2026-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -11.03], [146.75, -10.5], [146.97, -9.97], [147.5, -9.75], [148.03, -9.97], [148.25, -10.5], [148.03, -11.03], [147.5, -11.25], [146.97, -11.03]]], [[[141.5, -7.25], [141.75, -7.35], [141.88, -7.3], [141.75, -7.0], [141.97, -6.47], [142.5, -6.25], [142.75, -6.35], [143.0, -6.25], [143.25, -6.35], [143.5, -6.25], [144.03, -6.47], [144.25, -7.0], [144.15, -7.25], [144.18, -7.32], [144.25, -7.35], [144.5, -7.25], [144.75, -7.35], [145.0, -7.25], [145.25, -7.35], [145.5, -7.25], [146.03, -7.47], [146.25, -8.0], [146.13, -8.3], [146.53, -8.47], [146.75, -9.0], [146.53, -9.53], [146.0, -9.75], [145.47, -9.53], [145.25, -9.0], [145.38, -8.7], [145.25, -8.65], [145.0, -8.75], [144.75, -8.65], [144.68, -8.68], [144.53, -9.03], [144.0, -9.25], [143.75, -9.15], [143.5, -9.25], [143.0, -9.04], [142.5, -9.25], [142.25, -9.15], [142.0, -9.25], [141.75, -9.15], [141.5, -9.25], [140.97, -9.03], [140.75, -8.5], [140.85, -8.25], [140.75, -8.0], [140.97, -7.47], [141.5, -7.25]]]]}, "2026-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.97, -5.47], [140.5, -5.25], [140.75, -5.35], [141.0, -5.25], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.53, -5.97], [142.68, -6.32], [142.75, -6.35], [143.0, -6.25], [143.25, -6.35], [143.5, -6.25], [144.03, -6.47], [144.25, -7.0], [144.15, -7.25], [144.25, -7.5], [144.15, -7.75], [144.25, -8.0], [144.15, -8.25], [144.25, -8.5], [144.03, -9.03], [143.68, -9.18], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [140.97, -9.53], [140.82, -9.18], [140.47, -9.03], [140.25, -8.5], [140.46, -8.0], [140.25, -7.5], [140.35, -7.25], [140.32, -7.18], [139.97, -7.03], [139.75, -6.5], [139.85, -6.25], [139.75, -6.0], [139.97, -5.47]]]]}, "2026-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.97, -5.47], [140.5, -5.25], [140.75, -5.35], [141.0, -5.25], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.53, -5.97], [142.68, -6.32], [142.75, -6.35], [143.0, -6.25], [143.53, -6.47], [143.75, -7.0], [143.65, -7.25], [143.75, -7.5], [143.65, -7.75], [143.68, -7.82], [144.03, -7.97], [144.25, -8.5], [144.03, -9.03], [143.68, -9.18], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [140.97, -9.53], [140.82, -9.18], [140.47, -9.03], [140.25, -8.5], [140.46, -8.0], [140.25, -7.5], [140.35, -7.25], [140.32, -7.18], [139.97, -7.03], [139.75, -6.5], [139.85, -6.25], [139.75, -6.0], [139.97, -5.47]]]]}, "2026-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.97, -5.47], [140.5, -5.25], [140.75, -5.35], [141.0, -5.25], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.53, -5.97], [142.68, -6.32], [143.03, -6.47], [143.25, -7.0], [143.03, -7.53], [142.5, -7.75], [142.75, -7.85], [143.0, -7.75], [143.25, -7.85], [143.5, -7.75], [144.03, -7.97], [144.25, -8.5], [144.03, -9.03], [143.68, -9.18], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [140.97, -9.53], [140.82, -9.18], [140.47, -9.03], [140.25, -8.5], [140.46, -8.0], [140.25, -7.5], [140.35, -7.25], [140.32, -7.18], [139.97, -7.03], [139.75, -6.5], [139.85, -6.25], [139.75, -6.0], [139.97, -5.47]], [[142.25, -7.65], [142.0, -7.75], [142.25, -7.85], [142.5, -7.75], [142.25, -7.65]], [[141.75, -7.65], [141.68, -7.68], [141.63, -7.8], [141.75, -7.85], [142.0, -7.75], [141.75, -7.65]]]]}, "2026-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.5, -7.75], [144.03, -7.97], [144.25, -8.5], [144.03, -9.03], [143.68, -9.18], [143.53, -9.53], [143.0, -9.75], [142.47, -9.53], [142.25, -9.0], [142.47, -8.47], [142.82, -8.32], [142.97, -7.97], [143.5, -7.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.981637552633856}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.676771158931909}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.586616346571248, 28.107717980278892, 28.53392054239913, 28.516833241780603, 28.80347273977179, 28.942873715806343, 29.017836507161462, 28.424485270182345, 28.569384087456626, 28.83888180579669, 28.487210383559727, 28.24391072591152]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.255181884765648, 28.573484039306663, 29.107122039794945, 28.516833241780603, 29.213286336263025, 29.580462392171228, 29.73804626464846, 29.404982503255212, 29.485915120442712, 29.846236165364587, 29.204846954345726, 28.407037353515648]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.627228352647781, 1.1624721404983045, 1.511815294296568, 1.252221285071471, 1.3743376314579365, 1.7522332725868361, 1.8453499446125932, 1.4613414101766948, 1.7334789174489231, 1.9512952944694946, 1.5578483390986213, 1.0521341525304422]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8742633360346304, 1.3168291437374933, 1.7307420290684945, 1.252221285071471, 1.6985208640025462, 2.0899168795952505, 2.630116237692448, 2.277165488151468, 2.654920379096609, 2.981637552633856, 2.2795171365191322, 1.071056018269985]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.1625621739959358, 1.4467402622222936, 1.8510548670587197, 1.6290785529561778, 1.6807259379797046, 2.0179657384728595, 2.0877759362916675, 1.6281422762598379, 1.8553754356582572, 2.1646510026225707, 1.7075906822264784, 1.4561121895831661]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.5185933666118663, 1.5385225870901738, 2.1056937266665963, 1.6290785529561778, 1.9495273465632628, 2.459412862166722, 2.7222304534762074, 2.1767408405688675, 2.637836981583452, 3.0294082289916635, 2.3121177545992864, 1.5178203513508228]}}