{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:24:07.063497", "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": "2021-Apr-20_to_2021-Apr-23_142.0_-3.0"}, "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": 2021040002513}, "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 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 23 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 52524.90488295011}, "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": ["Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -3.0}, "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": 142.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.0\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": 142.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[142.75, -3.0], [142.53, -3.53], [142.0, -3.75], [141.47, -3.53], [141.323, -3.177], [140.97, -3.03], [140.823, -2.677], [140.75, -2.646], [140.5, -2.75], [140.25, -2.646], [140.0, -2.75], [139.75, -2.646], [139.5, -2.75], [138.97, -2.53], [138.823, -2.177], [138.47, -2.03], [138.323, -1.677], [137.97, -1.53], [137.75, -1.0], [137.97, -0.47], [138.5, -0.25], [138.75, -0.354], [139.0, -0.25], [139.25, -0.354], [139.5, -0.25], [139.75, -0.354], [140.0, -0.25], [140.25, -0.354], [140.5, -0.25], [141.03, -0.47], [141.177, -0.823], [141.25, -0.854], [141.5, -0.75], [142.03, -0.97], [142.25, -1.5], [142.043, -2.0], [142.177, -2.323], [142.53, -2.47], [142.75, -3.0]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-20T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[141.25, -3.0], [141.46966991411009, -2.4696699141100895], [142.0, -2.25], [142.53033008588991, 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-1.676776695296637]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.2190610530703339}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8744734258849434}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.103843233839655, 27.976039971687328, 28.290979946433595, 27.940001227031814]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.103843233839655, 28.201062710083477, 28.523510567154858, 28.175628678681846]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.5829271998800891, 0.8196192840677052, 1.0968422628317185, 0.724108508755692]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.5829271998800891, 1.0118921739709776, 1.2190610530703339, 0.8421868789204723]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3285212226125236, 1.7019725625196545, 2.3192875597882527, 1.5208669727303759]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3285212226125236, 2.1193327135755955, 2.611332529621808, 1.700538652535267]}}