{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:08.011568", "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": "2020-Apr-17_to_2020-Apr-19_178.5_-38.0"}, "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": 2020040002107}, "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 17 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 19 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 64925.79224363729}, "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": ["New Zealand"]}, "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": -38.0}, "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": 178.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "178.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 177.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 183.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-179.25, -40.147], [-178.751, -40.147], [-179.0, -40.25], [-179.25, -40.147]]], [[[-178.251, -40.147], [-178.5, 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affected", "value": ["S.W.South-America", "S.E.South-America", "S.South-America", "E.Australia", "S.Australia", "New-Zealand", "S.Pacific-Ocean", "S.Atlantic-Ocean", "Southern-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-17T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[177.32322330470336, -38.32322330470336], [177.35355339059328, -38.25], [177.25, -38.0], [177.46966991411009, -37.46966991411009], [178.0, -37.25], [178.25, -37.35355339059328], [178.5, -37.25], [179.03033008588991, -37.46966991411009], [179.17677669529664, -37.82322330470336], [179.25, -37.85355339059328], [179.5, -37.75], [-179.96966991411009, -37.96966991411009], [-179.82322330470336, -38.32322330470336], [-179.75, -38.35355339059328], [-179.5, -38.25], [-179.25, -38.35355339059328], [-179.17677669529664, -38.32322330470336], [-179.03033008588991, -37.96966991411009], [-178.5, -37.75], [-178.25, 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"value": [5.065111606382914, 3.5176417506378357, 3.4783474144800834]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5235519530419148, 1.515573104353884, 1.4226711783866723]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.254778072414983, 1.6179473954930608, 1.6137585939074117]}}