{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:46.787650", "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-Dec-13_to_2023-Dec-18_135.5_-19.5"}, "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": 2023120001445}, "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": "December 13 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 18 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": 55178.156388836156}, "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": -19.5}, "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": 135.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[132.75, -19.35], [133.0, -19.25], [133.25, -19.35], [133.32, -19.32], [133.47, -18.97], [134.0, -18.75], [134.25, -18.85], [134.5, -18.75], [134.75, -18.85], [135.0, -18.75], [135.25, -18.85], [135.5, -18.75], [135.75, -18.85], [136.0, -18.75], [136.53, -18.97], [136.75, -19.5], [136.65, -19.75], [136.75, -20.0], [136.53, -20.53], [136.0, -20.75], [135.75, -20.65], [135.68, -20.68], [135.53, -21.03], [135.0, -21.25], [134.75, -21.15], [134.5, -21.25], [134.25, -21.15], [134.0, -21.25], [133.75, -21.15], [133.5, -21.25], [133.25, -21.15], [133.0, -21.25], [132.75, -21.15], [132.5, -21.25], [131.97, -21.03], [131.75, -20.5], [131.85, -20.25], [131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "C.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35], [133.0, -19.25], [133.25, -19.35], [133.32, -19.32], [133.47, -18.97], [134.0, -18.75], [134.25, -18.85], [134.5, -18.75], [134.75, -18.85], [135.0, -18.75], [135.25, -18.85], [135.5, -18.75], [135.75, -18.85], [136.0, -18.75], [136.53, -18.97], [136.75, -19.5], [136.65, -19.75], [136.75, -20.0], [136.53, -20.53], [136.0, -20.75], [135.75, -20.65], [135.68, -20.68], [135.53, -21.03], [135.0, -21.25], [134.75, -21.15], [134.5, -21.25], [134.25, -21.15], [134.0, -21.25], [133.75, -21.15], [133.5, -21.25], [133.25, -21.15], [133.0, -21.25], [132.75, -21.15], [132.5, -21.25], [131.97, -21.03], [131.75, -20.5], [131.85, -20.25], [131.75, -20.0]]]]}, "2023-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35], [133.0, -19.25], [133.25, -19.35], [133.32, -19.32], [133.47, -18.97], [134.0, -18.75], [134.25, -18.85], [134.5, -18.75], [134.75, -18.85], [135.0, -18.75], [135.25, -18.85], [135.5, -18.75], [135.75, -18.85], [136.0, -18.75], [136.53, -18.97], [136.75, -19.5], [136.65, -19.75], [136.75, -20.0], [136.53, -20.53], [136.0, -20.75], [135.75, -20.65], [135.68, -20.68], [135.53, -21.03], [135.0, -21.25], [134.75, -21.15], [134.5, -21.25], [134.25, -21.15], [134.0, -21.25], [133.75, -21.15], [133.5, -21.25], [133.25, -21.15], [133.0, -21.25], [132.75, -21.15], [132.5, -21.25], [131.97, -21.03], [131.75, -20.5], [131.85, -20.25], [131.75, -20.0]]]]}, "2023-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35], [133.0, -19.25], [133.25, -19.35], [133.32, -19.32], [133.47, -18.97], [134.0, -18.75], [134.25, -18.85], [134.5, -18.75], [134.75, -18.85], [135.0, -18.75], [135.25, -18.85], [135.5, -18.75], [135.75, -18.85], [136.0, -18.75], [136.53, -18.97], [136.75, -19.5], [136.65, -19.75], [136.75, -20.0], [136.53, -20.53], [136.0, -20.75], [135.75, -20.65], [135.68, -20.68], 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-18.75], [136.03, -18.97], [136.25, -19.5], [136.03, -20.03], [135.5, -20.25], [134.97, -20.03], [134.75, -19.5], [134.97, -18.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.662552908427529}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.113298677218466}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.317584634379614, 35.91283561522539, 34.831266819849304, 35.14464661712066, 35.51297641972042, 36.441000310759875]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.10866743086058, 37.03481019239115, 35.4280469059683, 35.35844511414035, 35.51297641972042, 36.441000310759875]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.132923370233755, 4.694583224112182, 3.593633674582628, 3.5274249608388195, 3.7041613190624503, 4.736416676323245]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.53306644969058, 5.662552908427529, 3.848377534141605, 3.669878077087958, 3.7041613190624503, 4.736416676323245]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.486533272061381, 1.657918016461757, 1.2302079181068597, 1.2611937025707018, 1.2393414323515055, 1.5486716353398842]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7132613914739503, 1.96644486654197, 1.2893912231541833, 1.2951696156209977, 1.2393414323515055, 1.5486716353398842]}}