{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:04.125717", "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-Aug-20_to_2023-Aug-25_141.5_-3.5"}, "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": 2023080002028}, "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": "August 20 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2023"}, "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": 80194.25297169163}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["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": -3.5}, "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": 138.5}, "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": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[142.75, -5.0], [142.53, -5.53], [142.0, -5.75], [141.75, -5.65], [141.5, -5.75], [140.97, -5.53], [140.82, -5.18], [140.75, -5.15], [140.5, -5.25], [140.25, -5.15], [140.0, -5.25], [139.47, -5.03], [139.32, -4.68], [139.25, -4.65], [139.0, -4.75], [138.75, -4.65], [138.5, -4.75], [137.97, -4.53], [137.75, -4.0], [137.85, -3.75], [137.75, -3.5], [137.97, -2.97], [138.5, -2.75], [138.75, -2.85], [139.0, -2.75], [139.3, -2.87], [139.35, -2.75], [139.25, -2.5], [139.47, -1.97], [140.0, -1.75], [140.25, -1.85], [140.5, -1.75], [141.03, -1.97], [141.18, -2.32], [141.25, -2.35], [141.5, -2.25], [142.03, -2.47], [142.18, -2.82], [142.25, -2.85], [142.5, -2.75], [143.03, -2.97], [143.25, -3.5], [143.15, -3.75], [143.25, -4.0], [143.03, -4.53], [142.63, -4.7], [142.75, -5.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.5, -5.25], [139.97, -5.03], [139.75, -4.5], [139.97, -3.97], [140.5, -3.75], [141.03, -3.97], [141.25, -4.5], [141.03, -5.03], [140.5, -5.25]]], [[[142.0, -4.75], [141.47, -4.53], [141.25, -4.0], [141.47, -3.47], [142.0, -3.25], [142.53, -3.47], [142.75, -4.0], [142.53, -4.53], [142.0, -4.75]]]]}, "2023-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -3.5], [137.97, -2.97], [138.5, -2.75], [138.75, -2.85], [139.0, -2.75], [139.3, -2.87], [139.35, -2.75], [139.25, -2.5], [139.47, -1.97], [140.0, -1.75], [140.25, -1.85], [140.5, -1.75], [141.03, -1.97], [141.18, -2.32], [141.25, -2.35], [141.5, -2.25], [142.03, -2.47], [142.18, -2.82], [142.25, -2.85], [142.5, -2.75], [143.03, -2.97], [143.25, -3.5], [143.15, -3.75], [143.25, -4.0], [143.03, -4.53], [142.5, -4.75], [142.25, -4.65], [142.0, -4.75], [141.75, -4.65], [141.68, -4.68], [141.53, -5.03], [141.0, -5.25], [140.75, -5.15], [140.5, -5.25], [140.25, -5.15], [140.0, -5.25], [139.47, -5.03], [139.32, -4.68], [139.25, -4.65], [139.0, -4.75], [138.75, -4.65], [138.5, -4.75], [137.97, -4.53], [137.75, -4.0], [137.85, -3.75], [137.75, -3.5]]]]}, "2023-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -3.5], [137.97, -2.97], [138.5, -2.75], [138.75, -2.85], [139.0, -2.75], [139.3, -2.87], [139.35, -2.75], [139.25, -2.5], [139.47, -1.97], [140.0, -1.75], [140.25, -1.85], [140.5, -1.75], [141.03, -1.97], [141.18, -2.32], [141.25, -2.35], [141.5, -2.25], [142.03, -2.47], [142.18, -2.82], [142.25, -2.85], [142.5, -2.75], [143.03, -2.97], [143.25, -3.5], [143.15, -3.75], [143.25, -4.0], [143.03, -4.53], [142.5, -4.75], [142.25, -4.65], [142.0, -4.75], [141.75, -4.65], [141.68, -4.68], [141.53, -5.03], [141.0, -5.25], [140.75, -5.15], [140.5, -5.25], [140.25, -5.15], [140.0, -5.25], [139.47, -5.03], [139.32, -4.68], [139.25, -4.65], [139.0, -4.75], [138.75, -4.65], [138.5, -4.75], [137.97, -4.53], [137.75, -4.0], [137.85, -3.75], [137.75, -3.5]]]]}, 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recorded over entire duration", "value": 2.401435327698664}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4906927259549838}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.197506111696953, 24.55561495949553, 24.46230040873553, 24.00015279598034, 21.136469784864403, 21.501711539257258]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.925502569339244, 28.84738049782311, 29.160850151882812, 28.441583658183617, 27.108743159428457, 27.351122520506294]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0476901299811914, 1.6487576452775368, 1.558416657497882, 1.4420366476536493, 0.9858583783508038, 1.3419532349614542]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.169218791449964, 2.1432008825042317, 2.401435327698664, 2.279627613559569, 1.3834065934049704, 1.604409093684751]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3126762830750214, 1.9915772429109488, 1.867236649610409, 1.7882725527700787, 1.4186995927071915, 1.955412358900152]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3659032647127454, 2.455219620949744, 2.5770930353175263, 2.55241476925973, 1.6217000197275264, 2.7075604372318844]}}