{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:45.458485", "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": "2016-Dec-05_to_2016-Dec-08_125.0_-21.5"}, "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": 2016120000197}, "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": "December 05 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 08 2016"}, "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": 63287.019915813464}, "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": -21.5}, "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": 125.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -19.97], [123.82, -19.82], [123.97, -19.47], [124.5, -19.25], [125.03, -19.47], [125.18, -19.82], [125.53, -19.97], [125.68, -20.32], [126.0, -20.46], [126.5, -20.25], [127.03, -20.47], [127.25, -21.0], [127.15, -21.25], [127.2, -21.37], [127.5, -21.25], [128.03, -21.47], [128.18, -21.82], [128.53, -21.97], [128.75, -22.5], [128.53, -23.03], [128.0, -23.25], [127.75, -23.15], [127.5, -23.25], [127.25, -23.15], [127.0, -23.25], [126.47, -23.03], [126.32, -22.68], [126.25, -22.65], [126.0, -22.75], [125.75, -22.65], [125.5, -22.75], [125.25, -22.65], [125.0, -22.75], [124.47, -22.53], [124.32, -22.18], [124.25, -22.15], [124.0, -22.25], [123.47, -22.03], [123.25, -21.5], [123.46, -21.0], [123.25, -20.5], [123.47, -19.97]]]]}, "2016-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -19.97], [123.82, -19.82], [123.97, -19.47], [124.5, -19.25], [125.03, -19.47], [125.18, -19.82], [125.53, -19.97], [125.68, -20.32], [126.0, -20.46], [126.5, -20.25], [127.03, -20.47], [127.25, -21.0], [127.15, -21.25], [127.2, -21.37], [127.5, -21.25], [128.03, -21.47], [128.18, -21.82], [128.53, -21.97], [128.75, -22.5], [128.53, -23.03], [128.0, -23.25], [127.75, -23.15], [127.5, -23.25], [127.25, -23.15], [127.0, -23.25], [126.47, -23.03], [126.32, -22.68], [126.25, -22.65], [126.0, -22.75], [125.75, -22.65], [125.5, -22.75], [125.25, -22.65], [125.0, -22.75], [124.47, -22.53], [124.32, -22.18], [124.25, -22.15], [124.0, -22.25], [123.47, -22.03], [123.25, -21.5], [123.46, -21.0], [123.25, -20.5], [123.47, -19.97]]]]}, "2016-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -19.97], [123.82, -19.82], [123.97, -19.47], [124.5, -19.25], [125.03, -19.47], [125.18, -19.82], [125.53, -19.97], [125.68, -20.32], [126.0, -20.46], [126.5, -20.25], [127.03, -20.47], [127.25, -21.0], [127.15, -21.25], [127.2, -21.37], [127.5, -21.25], [128.03, -21.47], [128.18, -21.82], [128.53, -21.97], [128.75, -22.5], [128.53, -23.03], [128.0, -23.25], [127.75, -23.15], [127.5, -23.25], [127.25, -23.15], [127.0, -23.25], [126.47, -23.03], [126.32, -22.68], [126.25, -22.65], [126.0, -22.75], [125.75, -22.65], [125.5, -22.75], [125.25, -22.65], [125.0, -22.75], [124.47, -22.53], [124.32, -22.18], [124.25, -22.15], [124.0, -22.25], [123.47, -22.03], [123.25, -21.5], [123.46, -21.0], [123.25, -20.5], [123.47, -19.97]]]]}, "2016-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.5, -20.25], [125.03, -20.47], [125.18, -20.82], [125.53, -20.97], [125.68, -21.32], [126.03, -21.47], [126.25, -22.0], [126.03, -22.53], [125.5, -22.75], [125.25, -22.65], [125.0, -22.75], [124.47, -22.53], [124.32, -22.18], [124.25, -22.15], [124.0, -22.25], [123.47, -22.03], [123.25, -21.5], [123.47, -20.97], [123.82, -20.82], [123.97, -20.47], [124.5, -20.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.7884975838878745}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.2939814314511855}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.47646824225933, 27.436278520546125, 28.245781048064032, 28.06457357403076]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.440156805945833, 24.548861974024987, 27.136520380689547, 27.48526449261277]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.341365514140253, -5.282808069498427, -4.383926970944264, -4.831408477276767]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.7884975838878745, -7.475027529702004, -4.934620301951497, -5.252983126801212]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2500344489758386, -1.7622341145761486, -1.4314149192372394, -1.5331151633074835]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.836540543679438, -2.3883808951606036, -1.5978269528585345, -1.6342335911904846]}}