{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:37.472810", "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": "2010-Sep-13_to_2010-Sep-15_125.5_-31.5"}, "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": 2010090000636}, "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 13 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 15 2010"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 120016.41736883784}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia", "S.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": -31.5}, "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": 125.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 130.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -30.25], [123.75, -30.0], [123.85, -29.75], [123.75, -29.5], [123.97, -28.97], [124.32, -28.82], [124.47, -28.47], [125.0, -28.25], [125.25, -28.35], [125.5, -28.25], [125.75, -28.35], [126.0, -28.25], [126.25, -28.35], [126.5, -28.25], [127.03, -28.47], [127.18, -28.82], [127.53, -28.97], [127.68, -29.32], [127.75, -29.35], [128.0, -29.25], [128.5, -29.46], [129.0, -29.25], [129.25, -29.35], [129.5, -29.25], [129.75, -29.35], [129.82, -29.32], [129.97, -28.97], [130.5, -28.75], [131.03, -28.97], [131.25, -29.5], [131.03, -30.03], [130.68, -30.18], [130.65, -30.25], [130.75, -30.5], [130.53, -31.03], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [129.0, -31.04], [128.68, -31.18], [128.53, -31.53], [128.18, -31.68], [128.15, -31.75], [128.25, -32.0], [128.03, -32.53], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.5, -32.75], [125.97, -32.53], [125.82, -32.18], [125.75, -32.15], [125.5, -32.25], [124.97, -32.03], [124.8, -31.62], [124.5, -31.75], [123.97, -31.53], [123.75, -31.0], [123.85, -30.75], [123.75, -30.5], [123.85, -30.25]]]]}, "2010-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -30.25], [123.75, -30.0], [123.85, -29.75], [123.75, -29.5], [123.97, -28.97], [124.32, -28.82], [124.47, -28.47], [125.0, -28.25], [125.25, -28.35], [125.5, -28.25], [125.75, -28.35], [126.0, -28.25], [126.25, -28.35], [126.5, -28.25], [127.03, -28.47], [127.18, -28.82], [127.53, -28.97], [127.68, -29.32], [127.75, -29.35], [128.0, -29.25], [128.5, -29.46], [129.0, -29.25], [129.25, -29.35], [129.5, -29.25], [129.75, -29.35], [129.82, -29.32], [129.97, -28.97], [130.5, -28.75], [131.03, -28.97], [131.25, -29.5], [131.03, -30.03], [130.68, -30.18], [130.65, -30.25], [130.75, -30.5], [130.53, -31.03], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [129.0, -31.04], [128.68, -31.18], [128.53, -31.53], [128.18, -31.68], [128.15, -31.75], [128.25, -32.0], [128.03, -32.53], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.5, -32.75], [125.97, -32.53], [125.82, -32.18], [125.75, -32.15], [125.5, -32.25], [124.97, -32.03], [124.8, -31.62], [124.5, -31.75], [123.97, -31.53], [123.75, -31.0], [123.85, -30.75], [123.75, -30.5], [123.85, -30.25]]]]}, "2010-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -30.25], [123.75, -30.0], [123.85, -29.75], [123.75, -29.5], [123.97, -28.97], [124.32, -28.82], [124.47, -28.47], [125.0, -28.25], [125.25, -28.35], [125.5, -28.25], [125.75, -28.35], [126.0, -28.25], [126.25, -28.35], [126.5, -28.25], [127.03, -28.47], [127.18, -28.82], [127.53, -28.97], [127.68, -29.32], [127.75, -29.35], [128.0, -29.25], [128.5, -29.46], [129.0, -29.25], [129.25, -29.35], [129.5, -29.25], [129.75, -29.35], [129.82, -29.32], [129.97, -28.97], [130.5, -28.75], [131.03, -28.97], [131.25, -29.5], [131.03, -30.03], [130.68, -30.18], [130.65, -30.25], [130.75, -30.5], [130.53, -31.03], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [129.0, -31.04], [128.68, -31.18], [128.53, -31.53], [128.18, -31.68], [128.15, -31.75], [128.25, -32.0], [128.03, -32.53], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.5, -32.75], [125.97, -32.53], [125.82, -32.18], [125.75, -32.15], [125.5, -32.25], [124.97, -32.03], [124.8, -31.62], [124.5, -31.75], [123.97, -31.53], [123.75, -31.0], [123.85, -30.75], [123.75, -30.5], [123.85, -30.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.379980916815498}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.182182048202567}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.140877799451061, 11.438148869995928, 11.591199114262395]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.472403014780014, 10.373586328143972, 10.11334946919527]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.400412859135085, -5.179385091031383, -4.966748194441239]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.379980916815498, -5.792045107650381, -6.17399861048699]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3789191522550326, -1.3608203950325806, -1.3261077540237374]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.71561922139027, -1.4670091323260754, -1.4950736799693227]}}