{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:14.329323", "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": "2017-Feb-14_to_2017-Feb-17_123.0_-17.0"}, "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": 2017020000365}, "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 14 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 17 2017"}, "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": 50040.8697024261}, "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": []}, "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": -17.0}, "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": 123.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 122.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.85, -17.25], [121.75, -17.0], [121.97, -16.47], [122.5, -16.25], [122.75, -16.35], [123.0, -16.25], [123.5, -16.46], [124.0, -16.25], [124.53, -16.47], [124.68, -16.82], [125.03, -16.97], [125.18, -17.32], [125.53, -17.47], [125.75, -18.0], [125.65, -18.25], [125.75, -18.5], [125.53, -19.03], [125.0, -19.25], [124.75, -19.15], [124.5, -19.25], [124.25, -19.15], [124.0, -19.25], [123.47, -19.03], [123.32, -18.68], [123.25, -18.65], [123.0, -18.75], [122.75, -18.65], [122.5, -18.75], [121.97, -18.53], [121.75, -18.0], [121.85, -17.75], [121.75, -17.5], [121.85, -17.25]]]]}, "2017-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.85, -17.25], [121.75, -17.0], [121.97, -16.47], [122.5, -16.25], [122.75, -16.35], [123.0, -16.25], [123.5, -16.46], [124.0, -16.25], [124.53, -16.47], [124.68, -16.82], [125.03, -16.97], [125.18, -17.32], [125.53, -17.47], [125.75, -18.0], [125.65, -18.25], [125.75, -18.5], [125.53, -19.03], [125.0, -19.25], [124.75, -19.15], [124.5, -19.25], [124.25, -19.15], [124.0, -19.25], [123.47, -19.03], [123.32, -18.68], [123.25, -18.65], [123.0, -18.75], [122.75, -18.65], [122.5, -18.75], [121.97, -18.53], [121.75, -18.0], [121.85, -17.75], [121.75, -17.5], [121.85, -17.25]]]]}, "2017-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.85, -17.25], [121.75, -17.0], [121.97, -16.47], [122.5, -16.25], [122.75, -16.35], [123.0, -16.25], [123.5, -16.46], [124.0, -16.25], [124.53, -16.47], [124.68, -16.82], [125.03, -16.97], [125.18, -17.32], [125.53, -17.47], [125.75, -18.0], [125.65, -18.25], [125.75, -18.5], [125.53, -19.03], [125.0, -19.25], [124.75, -19.15], [124.5, -19.25], [124.25, -19.15], [124.0, -19.25], [123.47, -19.03], [123.32, -18.68], [123.25, -18.65], [123.0, -18.75], [122.75, -18.65], [122.5, -18.75], [121.97, -18.53], [121.75, -18.0], [121.85, -17.75], [121.75, -17.5], [121.85, -17.25]]]]}, "2017-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.97, -17.53], [121.75, -17.0], [121.97, -16.47], [122.5, -16.25], [122.75, -16.35], [123.0, -16.25], [123.53, -16.47], [123.75, -17.0], [123.53, -17.53], [123.0, -17.75], [122.75, -17.65], [122.5, -17.75], [121.97, -17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.814027603462819}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.4468288674651353}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.09695654559141, 25.882810583308867, 26.68483145775724, 26.753202559569786]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.13321098191932, 24.855104371166533, 25.89875839539428, 26.561524297646883]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.643246112401735, -3.8621664160773133, -3.0233866969432484, -1.846171571736562]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.316837010601262, -4.814027603462819, -4.0255252287423104, -2.2077420690130793]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8346555149896815, -1.9119658037079232, -1.4431522396627803, -1.423881405234615]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.744646966693558, -2.803826961920883, -1.7125709727486393, -1.4263476241942281]}}