{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:19.966532", "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": "2019-Mar-18_to_2019-Mar-23_144.0_-15.5"}, "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": 2019030000513}, "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": "March 18 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 23 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 95252.09308783634}, "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": ["Arafura Sea"]}, "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": -15.5}, "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": 144.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "144.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 141.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 145.25}, "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": -14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.0, -14.75], [145.53, -14.97], [145.75, -15.5], [145.53, -16.03], [145.0, -16.25], [144.47, -16.03], [144.25, -15.5], [144.47, -14.97], [145.0, -14.75]]]]}, "2019-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.47, -13.97], [143.0, -13.75], [143.25, -13.85], [143.5, -13.75], [143.75, -13.85], [144.0, -13.75], [144.25, -13.85], [144.5, -13.75], [145.03, -13.97], [145.18, -14.32], [145.53, -14.47], [145.75, -15.0], [145.65, -15.25], [145.75, -15.5], [145.65, -15.75], [145.75, -16.0], [145.53, -16.53], [145.0, -16.75], [144.75, -16.65], [144.5, -16.75], [143.97, -16.53], [143.82, -16.18], [143.47, -16.03], [143.32, -15.68], [143.25, -15.65], [143.0, -15.75], [142.47, -15.53], [142.25, -15.0], [142.35, -14.75], [142.25, -14.5], [142.47, -13.97]]]]}, "2019-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, -14.47], [141.5, -14.25], [142.03, -14.47], [142.18, -14.82], [142.25, -14.85], [142.32, -14.82], [142.35, -14.75], [142.25, -14.5], [142.47, -13.97], [143.0, -13.75], [143.25, -13.85], [143.5, -13.75], [143.75, -13.85], [144.0, -13.75], [144.25, -13.85], [144.5, -13.75], [145.03, -13.97], [145.18, -14.32], [145.53, -14.47], [145.75, -15.0], [145.65, -15.25], [145.75, -15.5], [145.65, -15.75], [145.75, -16.0], [145.54, -16.5], [145.75, -17.0], [145.53, -17.53], [145.0, -17.75], [144.75, -17.65], [144.5, -17.75], [143.97, -17.53], [143.82, -17.18], [143.75, -17.15], [143.5, -17.25], [142.97, -17.03], [142.82, -16.68], [142.75, -16.65], [142.5, -16.75], [141.97, -16.53], [141.82, -16.18], [141.75, -16.15], [141.5, -16.25], [140.97, -16.03], [140.75, -15.5], [140.85, -15.25], [140.75, -15.0], [140.97, -14.47]]]]}, "2019-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.85, -15.75], [140.75, -15.5], [140.85, -15.25], [140.75, -15.0], [140.97, -14.47], [141.5, -14.25], [142.03, -14.47], [142.18, -14.82], [142.25, -14.85], [142.32, -14.82], [142.35, -14.75], [142.25, -14.5], [142.47, -13.97], [143.0, -13.75], [143.25, -13.85], [143.5, -13.75], [143.75, -13.85], [144.0, -13.75], [144.25, -13.85], [144.5, -13.75], [145.03, -13.97], [145.18, -14.32], [145.53, -14.47], [145.75, -15.0], [145.65, -15.25], [145.75, -15.5], [145.65, -15.75], [145.75, -16.0], [145.54, -16.5], [145.75, -17.0], [145.53, -17.53], [145.0, -17.75], [144.75, -17.65], [144.5, -17.75], [143.97, -17.53], [143.82, -17.18], [143.75, -17.15], [143.5, -17.25], [142.97, -17.03], [142.82, -16.68], [142.75, -16.65], [142.5, -16.75], [142.25, -16.65], [142.18, -16.68], [142.03, -17.03], [141.5, -17.25], [140.97, -17.03], [140.75, -16.5], [140.85, -16.25], [140.75, -16.0], [140.85, -15.75]]]]}, "2019-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.85, -15.75], [140.75, -15.5], [140.85, -15.25], [140.75, -15.0], [140.97, -14.47], [141.5, -14.25], [142.03, -14.47], [142.18, -14.82], [142.25, -14.85], [142.32, -14.82], [142.35, -14.75], [142.25, -14.5], [142.47, -13.97], [143.0, -13.75], [143.25, -13.85], [143.5, -13.75], [143.75, -13.85], [144.0, -13.75], [144.25, -13.85], [144.5, -13.75], [145.03, -13.97], [145.25, -14.5], [145.15, -14.75], [145.18, -14.82], [145.53, -14.97], [145.75, -15.5], [145.65, -15.75], [145.75, -16.0], [145.54, -16.5], [145.75, -17.0], [145.53, -17.53], [145.0, -17.75], [144.75, -17.65], [144.5, -17.75], [143.97, -17.53], [143.82, -17.18], [143.75, -17.15], [143.5, -17.25], [142.97, -17.03], [142.82, -16.68], [142.75, -16.65], [142.5, -16.75], [142.25, -16.65], [142.18, -16.68], [142.03, -17.03], [141.5, -17.25], [140.97, -17.03], [140.75, -16.5], [140.85, -16.25], [140.75, -16.0], [140.85, -15.75]]]]}, "2019-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.85, -15.75], [140.75, -15.5], [140.97, -14.97], [141.5, -14.75], [141.75, -14.85], [142.0, -14.75], [142.53, -14.97], [142.75, -15.5], [142.65, -15.75], [142.75, -16.0], [142.53, -16.53], [142.18, -16.68], [142.03, -17.03], [141.5, -17.25], [140.97, -17.03], [140.75, -16.5], [140.85, -16.25], [140.75, -16.0], [140.85, -15.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.455442612382228}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9060183134634225}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.055326428885678, 25.19927003714622, 25.03051136408402, 24.49554125866689, 25.206679870867845, 26.66040452436141]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.055326428885678, 23.5152277560436, 22.51364472263066, 21.606599249775854, 22.942321048911367, 26.482555738561416]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0355323569116308, -1.428118362050254, -1.8085000001617415, -2.451328563888806, -1.7792021828836992, -1.280115992752235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0355323569116308, -1.7932254032190258, -2.416188438118297, -3.455442612382228, -2.767338625480079, -1.5366585878040837]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2784921870015613, -1.8090539149037308, -2.118133156567958, -2.761214590151362, -2.0009819537182767, -1.503141235419783]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2784921870015613, -2.247838364164217, -2.779756862552487, -3.3634940637775337, -2.714362315969762, -1.8641724743537624]}}