{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:24.495452", "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": "2012-Sep-10_to_2012-Sep-18_128.0_-14.0"}, "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": 2012090000437}, "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 10 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 2012"}, "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": "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": 77801.50557715443}, "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": ["N.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": ["Timor 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": -14.0}, "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": 128.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 126.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.75, -13.5], [126.97, -12.97], [127.5, -12.75], [128.03, 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-13.47], [128.0, -13.25]]]]}, "2012-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.75, -14.0], [126.97, -13.47], [127.5, -13.25], [127.75, -13.35], [128.0, -13.25], [128.53, -13.47], [128.75, -14.0], [128.63, -14.3], [129.03, -14.47], [129.25, -15.0], [129.03, -15.53], [128.5, -15.75], [127.97, -15.53], [127.75, -15.0], [127.88, -14.7], [127.75, -14.65], [127.5, -14.75], [126.97, -14.53], [126.75, -14.0]]], [[[129.47, -14.03], [129.25, -13.5], [129.47, -12.97], [130.0, -12.75], [130.53, -12.97], [130.75, -13.5], [130.53, -14.03], [130.0, -14.25], [129.47, -14.03]]]]}, "2012-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.25, -14.0], [126.47, -13.47], [127.0, -13.25], [127.25, -13.35], [127.5, -13.25], [128.03, -13.47], [128.25, -14.0], [128.15, -14.25], [128.18, -14.32], [128.25, -14.35], [128.5, -14.25], [129.03, -14.47], [129.25, -15.0], [129.07, -15.43], [129.32, -15.32], [129.47, -14.97], [129.82, -14.82], [129.96, -14.5], 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{"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.199185086616023}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.080021150025686, 24.422508513928392, 25.174565450640955, 25.218229349338515, 25.095609607824372, 25.31659812637946, 25.02725553799695, 25.51811965450628, 25.755427618162855]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.021924244887714, 24.36733064380087, 25.07349386340519, 25.218229349338515, 24.47574036071569, 24.161944097095443, 23.29693672234083, 24.233460454850785, 24.671477875025573]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1120267548130016, -1.7805652514813346, -1.0251798591410193, -0.960372270659775, -1.496185561430508, -2.216395075280764, -2.6062989689467506, 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