{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:24:19.738806", "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-26_to_2021-Apr-28_131.0_-17.5"}, "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": 2021040002838}, "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 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2021"}, "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": 79719.39586186242}, "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": ["Australia"]}, "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": []}, "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": -17.5}, "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": 131.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[129.97, -16.97], [130.323, -16.823], [130.47, -16.47], [130.823, -16.323], [130.854, -16.25], [130.75, -16.0], [130.97, -15.47], [131.5, -15.25], [131.75, -15.354], [132.0, -15.25], [132.25, -15.354], [132.5, -15.25], [132.75, -15.354], [133.0, -15.25], [133.53, -15.47], [133.75, -16.0], [133.543, -16.5], [133.677, -16.823], [133.75, -16.854], [134.0, -16.75], [134.53, -16.97], [134.75, -17.5], [134.646, -17.75], [134.75, -18.0], [134.53, -18.53], [134.0, -18.75], [133.75, -18.646], [133.5, -18.75], [133.25, -18.646], [133.0, -18.75], [132.75, -18.646], [132.5, -18.75], [132.25, -18.646], [132.0, -18.75], [131.75, -18.646], [131.5, -18.75], [131.0, -18.543], [130.5, -18.75], [129.97, -18.53], [129.75, -18.0], [129.854, -17.75], [129.75, -17.5], [129.97, -16.97]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[129.85355339059328, 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-18.646446609406727], [131.5, -18.75], [131.0, -18.542893218813454], [130.5, -18.75], [129.96966991411009, -18.53033008588991], [129.75, -18.0], [129.85355339059328, -17.75]]]}, "2021-04-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[129.85355339059328, -17.75], [129.75, -17.5], [129.96966991411009, -16.96966991411009], [130.32322330470336, -16.82322330470336], [130.46966991411009, -16.46966991411009], [130.82322330470336, -16.32322330470336], [130.85355339059328, -16.25], [130.75, -16.0], [130.96966991411009, -15.469669914110089], [131.5, -15.25], [131.75, -15.353553390593273], [132.0, -15.25], [132.25, -15.353553390593273], [132.5, -15.25], [132.75, -15.353553390593273], [133.0, -15.25], [133.53033008588991, -15.469669914110089], [133.75, -16.0], [133.54289321881345, -16.5], [133.67677669529664, -16.82322330470336], [133.75, -16.853553390593273], [134.0, -16.75], [134.53033008588991, -16.96966991411009], [134.75, -17.5], [134.64644660940672, -17.75], [134.75, -18.0], 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{"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.889052830015544, 29.37511684046052, 28.46591106139016]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.908698939968133, 30.843032385320328, 29.432023445673792]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3958257893392365, 4.0292709721004085, 3.2600411401933123]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.6028250113323566, 5.348984815886126, 3.882690647133529]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4976734342347464, 1.7290587102713457, 1.3449253578391416]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0027661040330798, 2.398446119357954, 1.6036942564564731]}}