{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:43.771737", "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": "2024-Dec-23_to_2024-Dec-31_143.5_-21.5"}, "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": 2024120002023}, "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 23 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 31 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 77149.6141757594}, "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": -21.5}, "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": 143.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "143.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 142.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 145.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[142.75, -21.35], [142.82, -21.32], [142.97, -20.97], [143.32, -20.82], [143.47, -20.47], [144.0, -20.25], [144.25, 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[144.25, -21.5], [144.03, -22.03], [143.5, -22.25], [142.97, -22.03], [142.75, -21.5], [142.97, -20.97]]]]}, "2024-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.5, -22.25], [142.97, -22.03], [142.75, -21.5], [142.97, -20.97], [143.5, -20.75], [143.75, -20.85], [144.0, -20.75], [144.53, -20.97], [144.75, -21.5], [144.53, -22.03], [144.0, -22.25], [143.75, -22.15], [143.5, -22.25]]]]}, "2024-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.97, -22.53], [141.75, -22.0], [141.97, -21.47], [142.5, -21.25], [142.75, -21.35], [142.82, -21.32], [142.97, -20.97], [143.5, -20.75], [143.75, -20.85], [144.0, -20.75], [144.53, -20.97], [144.75, -21.5], [144.65, -21.75], [144.75, -22.0], [144.65, -22.25], [144.75, -22.5], [144.65, -22.75], [144.68, -22.82], [145.03, -22.97], [145.25, -23.5], [145.15, -23.75], [145.25, -24.0], [145.03, -24.53], [144.5, -24.75], [144.25, -24.65], [144.0, -24.75], [143.47, -24.53], [143.32, -24.18], [142.97, -24.03], [142.82, -23.68], [142.47, -23.53], [142.25, -23.0], [142.35, -22.75], [142.32, -22.68], [141.97, -22.53]]]]}, "2024-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.97, -22.53], [141.75, -22.0], [141.97, -21.47], [142.5, -21.25], [142.75, -21.35], [142.82, -21.32], [142.97, -20.97], [143.5, -20.75], [143.75, -20.85], [144.0, -20.75], [144.53, -20.97], [144.75, -21.5], [144.65, -21.75], [144.75, -22.0], [144.65, -22.25], [144.75, -22.5], [144.65, -22.75], [144.68, -22.82], [145.03, -22.97], [145.25, -23.5], [145.15, -23.75], [145.25, -24.0], [145.03, -24.53], [144.5, -24.75], [144.25, -24.65], [144.0, -24.75], [143.47, -24.53], [143.32, -24.18], [142.97, -24.03], [142.82, -23.68], [142.47, -23.53], [142.25, -23.0], [142.35, -22.75], [142.32, -22.68], [141.97, -22.53]]]]}, "2024-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.97, -22.53], [141.75, -22.0], [141.97, -21.47], [142.5, -21.25], [142.75, -21.35], [142.82, -21.32], 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-20.25], [145.03, -20.47], [145.18, -20.82], [145.53, -20.97], [145.75, -21.5], [145.53, -22.03], [145.0, -22.25], [144.47, -22.03], [144.32, -21.68], [143.97, -21.53]]]]}, "2024-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.97, -21.53], [143.75, -21.0], [143.97, -20.47], [144.5, -20.25], [145.03, -20.47], [145.18, -20.82], [145.53, -20.97], [145.75, -21.5], [145.53, -22.03], [145.0, -22.25], [144.47, -22.03], [144.32, -21.68], [143.97, -21.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.588040031967353}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.562758164784732}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.49446894327804, 33.452750142415425, 34.24736272774493, 35.42328055886662, 33.918102989667716, 34.05898497338387, 33.437579454694514, 32.23208897908535, 32.38369522094729]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.49446894327804, 33.54560496012374, 34.86308059692385, 36.83565800984701, 35.123015340169275, 35.2800231933594, 34.423762257893884, 32.67028071085616, 32.750801340738974]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3773120019883436, 3.606703862685066, 4.294962207818448, 5.470956442201023, 4.329703326997405, 4.804507070051206, 4.363777787411071, 3.818437935461901, 3.896673310759894]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3773120019883436, 3.7594730431112566, 4.593792077289152, 6.588040031967353, 5.024675685894863, 5.784994084326456, 4.994196900283953, 4.287739834633783, 4.300178291248642]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.237509108564486, 1.24303518418826, 1.305158224294453, 1.6496685940527764, 1.3395264889841056, 1.6177512941306413, 1.5175541361105431, 1.4411557254412328, 1.4655161559942445]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.237509108564486, 1.286734551002552, 1.4338929600988413, 1.8575949692979146, 1.5094305760663773, 2.0753431458338016, 1.7251521977498672, 1.579718508526591, 1.5765102837480915]}}