{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:20.420770", "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-Sep-08_to_2023-Sep-11_133.5_-12.0"}, "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": 2023090001135}, "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": "September 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2023"}, "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": 54400.193856944745}, "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": ["Arafura Sea"]}, "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": -12.0}, "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": 133.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[133.32, -11.32], [133.47, -10.97], [134.0, -10.75], [134.53, -10.97], [134.68, -11.32], [134.75, -11.35], [135.0, -11.25], [135.25, -11.35], [135.5, -11.25], [135.75, -11.35], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.03, -12.53], [136.5, -12.75], [136.25, -12.65], [136.0, -12.75], [135.75, -12.65], [135.68, -12.68], [135.53, -13.03], [135.0, -13.25], [134.75, -13.15], [134.5, -13.25], [134.25, -13.15], [134.0, -13.25], [133.75, -13.15], [133.5, -13.25], [133.25, -13.15], [133.0, -13.25], [132.5, -13.04], [132.0, -13.25], [131.47, -13.03], [131.25, -12.5], [131.35, -12.25], [131.25, -12.0], [131.35, -11.75], [131.25, -11.5], [131.47, -10.97], [132.0, -10.75], [132.53, -10.97], [132.68, -11.32], [132.75, -11.35], [133.0, -11.25], [133.25, -11.35], [133.32, -11.32]]]]}}, "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": {"2023-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -11.47], [133.0, -11.25], [133.25, -11.35], [133.32, -11.32], [133.47, -10.97], [134.0, -10.75], [134.53, -10.97], [134.68, -11.32], [134.75, -11.35], [135.0, -11.25], [135.25, -11.35], [135.5, -11.25], [135.75, -11.35], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.03, -12.53], [136.5, -12.75], [136.25, -12.65], [136.0, -12.75], [135.75, -12.65], [135.68, -12.68], [135.53, -13.03], [135.0, -13.25], [134.75, -13.15], [134.5, -13.25], [134.25, -13.15], [134.0, -13.25], [133.75, -13.15], [133.5, -13.25], [133.25, -13.15], [133.0, -13.25], [132.5, -13.04], [132.0, -13.25], [131.47, -13.03], [131.25, -12.5], [131.47, -11.97], [132.0, -11.75], [132.3, -11.87], [132.47, -11.47]]]]}, "2023-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.25, -12.0], [131.35, -11.75], [131.25, -11.5], [131.47, -10.97], [132.0, -10.75], [132.53, -10.97], 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.872386751417366}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7374224438758827}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.66668390135868, 28.079568467252784, 27.782890957810253, 27.359457047071032]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.06177087701286, 29.407873344657048, 29.681864287244082, 27.809017925190517]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6729584865651987, 2.0037257889680467, 1.6377465245197191, 1.0599776760132993]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.666002121149404, 2.872386751417366, 2.7557581003442237, 1.2917757813139588]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8129285867801344, 2.3277478374823497, 1.8939156027670114, 1.5656318281297452]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3898440959607425, 3.2102576633078654, 2.5390604178825837, 1.7883603379191721]}}