{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:34.471338", "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-Feb-04_to_2012-Feb-06_118.5_-27.0"}, "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": 2012020000368}, "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 04 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 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": 98881.77914902997}, "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"]}, "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": -27.0}, "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": 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": 117.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.35, -26.25], [117.25, -26.0], [117.47, -25.47], [118.0, -25.25], [118.25, -25.35], [118.5, -25.25], [118.75, -25.35], [119.0, -25.25], [119.25, -25.35], [119.5, -25.25], [120.03, -25.47], [120.18, -25.82], [120.25, -25.85], [120.5, -25.75], [121.03, -25.97], [121.18, -26.32], [121.25, -26.35], [121.5, -26.25], [122.03, -26.47], [122.25, -27.0], [122.15, -27.25], [122.18, -27.32], [122.53, -27.47], [122.68, -27.82], [123.03, -27.97], [123.18, -28.32], [123.53, -28.47], [123.75, -29.0], [123.53, -29.53], [123.0, -29.75], [122.75, -29.65], [122.5, -29.75], [121.97, -29.53], [121.82, -29.18], [121.47, -29.03], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.75, -28.65], [120.5, -28.75], [120.25, -28.65], [120.0, -28.75], [119.75, -28.65], [119.5, -28.75], [119.25, -28.65], [119.0, -28.75], [118.47, -28.53], [118.32, -28.18], [117.97, -28.03], [117.82, -27.68], [117.47, -27.53], [117.25, -27.0], [117.35, -26.75], [117.25, -26.5], [117.35, -26.25]]]]}, "2012-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.35, -26.25], [117.25, -26.0], [117.47, -25.47], [118.0, -25.25], [118.25, -25.35], [118.5, -25.25], [118.75, -25.35], [119.0, -25.25], [119.25, -25.35], [119.5, -25.25], [120.03, -25.47], [120.18, -25.82], [120.25, -25.85], [120.5, -25.75], [121.03, -25.97], [121.18, -26.32], [121.25, -26.35], [121.5, -26.25], [122.03, -26.47], [122.25, -27.0], [122.15, -27.25], [122.18, -27.32], [122.53, -27.47], [122.68, -27.82], [123.03, -27.97], [123.18, -28.32], [123.53, -28.47], [123.75, -29.0], [123.53, -29.53], [123.0, -29.75], [122.75, -29.65], [122.5, -29.75], [121.97, -29.53], [121.82, -29.18], [121.47, -29.03], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.75, -28.65], [120.5, -28.75], [120.25, -28.65], [120.0, -28.75], [119.75, -28.65], [119.5, -28.75], [119.25, -28.65], [119.0, -28.75], [118.47, -28.53], [118.32, -28.18], [117.97, -28.03], [117.82, -27.68], [117.47, -27.53], [117.25, -27.0], [117.35, -26.75], [117.25, -26.5], [117.35, -26.25]]]]}, "2012-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.35, -26.25], [117.25, -26.0], [117.47, -25.47], [118.0, -25.25], [118.25, -25.35], [118.5, -25.25], [118.75, -25.35], [119.0, -25.25], [119.25, -25.35], [119.5, -25.25], [120.03, -25.47], [120.18, -25.82], [120.25, -25.85], [120.5, -25.75], [121.03, -25.97], [121.18, -26.32], [121.25, -26.35], [121.5, -26.25], [122.03, -26.47], [122.25, -27.0], [122.15, -27.25], [122.18, -27.32], [122.53, -27.47], [122.68, -27.82], [123.03, -27.97], [123.18, -28.32], [123.53, -28.47], [123.75, -29.0], [123.53, -29.53], [123.0, -29.75], [122.75, -29.65], [122.5, -29.75], [121.97, -29.53], [121.82, -29.18], [121.47, -29.03], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.75, -28.65], [120.5, -28.75], [120.25, -28.65], [120.0, -28.75], [119.75, -28.65], [119.5, -28.75], [119.25, -28.65], [119.0, -28.75], [118.47, -28.53], [118.32, -28.18], [117.97, -28.03], [117.82, -27.68], [117.47, -27.53], [117.25, -27.0], [117.35, -26.75], [117.25, -26.5], [117.35, -26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.471684374606582}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.748559196408594}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.370970569558665, 21.656651505861078, 24.035265362540656]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.537175479860423, 18.15903338034053, 20.263251587428726]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.050056445803579, -7.776778317821505, -5.418842825600696]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.84178113588348, -8.471684374606582, -6.276796317254991]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.794725449791079, -2.026637064444772, -1.43194623848137]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1223078652710106, -2.254442739951272, -1.547249030256081]}}