{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:47.477968", "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-Nov-04_to_2012-Nov-06_118.5_-29.5"}, "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": 2012110000224}, "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": "November 04 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 2012"}, "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": 67451.81981308493}, "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": -29.5}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, -28.0], [116.97, -27.47], [117.32, -27.32], [117.47, -26.97], [117.82, -26.82], [117.97, -26.47], [118.32, -26.32], [118.47, -25.97], [119.0, -25.75], [119.53, -25.97], [119.75, -26.5], [119.65, -26.75], [119.75, -27.0], [119.53, -27.53], [119.13, -27.7], [119.25, -28.0], [119.15, -28.25], [119.18, -28.32], [119.53, -28.47], [119.68, -28.82], [119.75, -28.85], [120.0, -28.75], [120.53, -28.97], [120.68, -29.32], [121.03, -29.47], [121.25, -30.0], [121.15, -30.25], [121.25, -30.5], [121.03, -31.03], [120.68, -31.18], [120.53, -31.53], [120.0, -31.75], [119.75, -31.65], [119.5, -31.75], [119.25, -31.65], [119.0, -31.75], [118.47, -31.53], [118.25, -31.0], [118.35, -30.75], [118.25, -30.5], [118.38, -30.2], [117.97, -30.03], [117.82, -29.68], [117.47, -29.53], [117.25, -29.0], [117.35, -28.75], [117.32, -28.68], [116.97, -28.53], [116.75, -28.0]]]]}, "2012-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, -28.0], [116.97, -27.47], [117.32, -27.32], [117.47, -26.97], [117.82, -26.82], [117.97, -26.47], [118.32, -26.32], [118.47, -25.97], [119.0, -25.75], [119.53, -25.97], [119.75, -26.5], [119.65, -26.75], [119.75, -27.0], [119.53, -27.53], [119.13, -27.7], [119.25, -28.0], [119.15, -28.25], [119.18, -28.32], [119.53, -28.47], [119.68, -28.82], [119.75, -28.85], [120.0, -28.75], [120.53, -28.97], [120.68, -29.32], [121.03, -29.47], [121.25, -30.0], [121.15, -30.25], [121.25, -30.5], [121.03, -31.03], [120.68, -31.18], [120.53, -31.53], [120.0, -31.75], [119.75, -31.65], [119.5, -31.75], [119.25, -31.65], [119.0, -31.75], [118.47, -31.53], [118.25, -31.0], [118.35, -30.75], [118.25, -30.5], [118.38, -30.2], [117.97, -30.03], [117.82, -29.68], [117.47, -29.53], [117.25, -29.0], [117.35, -28.75], [117.32, -28.68], [116.97, -28.53], [116.75, -28.0]]]]}, "2012-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, -28.0], [116.97, -27.47], [117.32, -27.32], [117.47, -26.97], [117.82, -26.82], [117.97, -26.47], [118.32, -26.32], [118.47, -25.97], [119.0, -25.75], [119.53, -25.97], [119.75, -26.5], [119.65, -26.75], [119.75, -27.0], [119.53, -27.53], [119.13, -27.7], [119.25, -28.0], [119.15, -28.25], [119.18, -28.32], [119.53, -28.47], [119.68, -28.82], [119.75, -28.85], [120.0, -28.75], [120.53, -28.97], [120.68, -29.32], [121.03, -29.47], [121.25, -30.0], [121.15, -30.25], [121.25, -30.5], [121.03, -31.03], [120.68, -31.18], [120.53, -31.53], [120.0, -31.75], [119.75, -31.65], [119.5, -31.75], [119.25, -31.65], [119.0, -31.75], [118.47, -31.53], [118.25, -31.0], [118.35, -30.75], [118.25, -30.5], [118.38, -30.2], [117.97, -30.03], [117.82, -29.68], [117.47, -29.53], [117.25, -29.0], [117.35, -28.75], [117.32, -28.68], [116.97, -28.53], [116.75, -28.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.134088811461368}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.196736347065349}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.70554717356623, 15.208293042912885, 17.42369668255577]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.293768145214017, 13.435674683872719, 15.643723626760334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.993334654868845, -7.833531326789525, -5.763343059537674]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.134088811461368, -8.669643239927893, -6.16540542575018]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.095630266437575, -1.9827082173647848, -1.4293076265884728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3192994000614355, -2.1224493309164574, -1.5047493712151863]}}