{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:44.029766", "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": "2011-Feb-06_to_2011-Feb-09_125.5_-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": 2011020000422}, "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": "February 06 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 09 2011"}, "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": "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": 104636.93536698718}, "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": ["Indian Ocean"]}, "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": 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": 121.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.97, -14.03], [123.75, -13.5], [123.97, -12.97], [124.5, -12.75], [124.75, -12.85], [125.0, -12.75], [125.53, -12.97], [125.68, -13.32], [126.03, -13.47], [126.25, -14.0], [126.03, -14.53], [125.5, -14.75], [124.97, -14.53], [124.82, -14.18], [124.75, -14.15], [124.5, -14.25], [123.97, -14.03]]]]}, "2011-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -15.25], [121.25, -15.0], [121.35, -14.75], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.32, -13.82], [122.35, -13.75], [122.25, -13.5], [122.35, -13.25], [122.25, -13.0], [122.47, -12.47], [123.0, -12.25], [123.25, -12.35], [123.5, -12.25], [124.03, -12.47], [124.18, -12.82], [124.25, -12.85], [124.5, -12.75], [124.75, -12.85], [125.0, -12.75], [125.53, -12.97], [125.68, -13.32], [126.03, -13.47], [126.25, -14.0], [126.03, -14.53], [125.68, -14.68], [125.65, -14.75], [125.75, -15.0], [125.53, -15.53], [125.18, -15.68], [125.03, -16.03], [124.68, -16.18], [124.53, -16.53], [124.18, -16.68], [124.15, -16.75], [124.25, -17.0], [124.03, -17.53], [123.5, -17.75], [122.97, -17.53], [122.82, -17.18], [122.47, -17.03], [122.3, -16.62], [122.0, -16.75], [121.47, -16.53], [121.25, -16.0], [121.35, -15.75], [121.25, -15.5], [121.35, -15.25]], [[123.35, -15.25], [123.32, -15.18], [123.25, -15.15], [123.18, -15.18], [123.15, -15.25], [123.2, -15.37], [123.32, -15.32], [123.35, -15.25]]]]}, "2011-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -15.25], [121.25, -15.0], [121.35, -14.75], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.32, -13.82], [122.35, -13.75], [122.25, -13.5], [122.35, -13.25], [122.25, -13.0], [122.47, -12.47], [123.0, -12.25], [123.25, -12.35], [123.5, -12.25], [124.03, -12.47], [124.18, -12.82], [124.25, -12.85], [124.5, -12.75], [124.75, -12.85], [125.0, -12.75], [125.53, -12.97], [125.68, -13.32], [126.03, -13.47], [126.25, -14.0], [126.03, -14.53], [125.68, -14.68], [125.65, -14.75], [125.75, -15.0], [125.53, -15.53], [125.18, -15.68], [125.03, -16.03], [124.68, -16.18], [124.53, -16.53], [124.18, -16.68], [124.15, -16.75], [124.25, -17.0], [124.03, -17.53], [123.5, -17.75], [122.97, -17.53], [122.82, -17.18], [122.47, -17.03], [122.3, -16.62], [122.0, -16.75], [121.47, -16.53], [121.25, -16.0], [121.35, -15.75], [121.25, -15.5], [121.35, -15.25]], [[123.35, -15.25], [123.32, -15.18], [123.25, -15.15], [123.18, -15.18], [123.15, -15.25], [123.2, -15.37], [123.32, -15.32], [123.35, -15.25]]]]}, "2011-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -15.25], [121.25, -15.0], [121.35, -14.75], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.32, -13.82], [122.35, -13.75], [122.25, -13.5], [122.35, -13.25], [122.25, -13.0], [122.47, -12.47], [123.0, -12.25], [123.25, -12.35], [123.5, -12.25], [124.03, -12.47], [124.18, -12.82], [124.53, -12.97], [124.68, -13.32], [124.75, -13.35], [125.0, -13.25], [125.25, -13.35], [125.5, -13.25], [126.03, -13.47], [126.25, -14.0], [126.03, -14.53], [125.68, -14.68], [125.65, -14.75], [125.75, -15.0], [125.53, -15.53], [125.18, -15.68], [125.03, -16.03], [124.68, -16.18], [124.53, -16.53], [124.18, -16.68], [124.15, -16.75], [124.25, -17.0], [124.03, -17.53], [123.5, -17.75], [122.97, -17.53], [122.82, -17.18], [122.47, -17.03], [122.3, -16.62], [122.0, -16.75], [121.47, -16.53], [121.25, -16.0], [121.35, -15.75], [121.25, -15.5], [121.35, -15.25]], [[123.35, -15.25], [123.32, -15.18], [123.25, -15.15], [123.18, -15.18], [123.15, -15.25], [123.2, -15.37], [123.32, -15.32], [123.35, -15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0432911913700877}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4293453745108373}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.88794449048362, 26.817602336454854, 26.587902728920085, 26.758278095832623]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.874196989821996, 26.328922899596876, 26.013381924694045, 26.321039261776548]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.158712014011409, -1.3391377783528533, -1.5685015581216493, -1.4020332387729375]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1938138327822116, -1.7442336397455165, -2.0432911913700877, -1.5854564490276744]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2698815845074745, -1.4992114607522837, -1.7469786964134908, -1.5475685008961315]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2847619511742612, -1.8846837129960625, -2.103176945608652, -1.8622191021294674]}}