{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:08.662531", "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": "2020-Mar-13_to_2020-Mar-20_145.5_-19.0"}, "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": 2020030000381}, "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 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 20 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 78930.1270986402}, "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": -19.0}, "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": 145.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.0, -17.75], [144.53, -17.97], [144.75, -18.5], [144.53, -19.03], [144.0, -19.25], [143.47, -19.03], [143.25, -18.5], [143.47, -17.97], [144.0, -17.75]]]]}, "2020-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -18.5], [143.47, -17.97], [144.0, -17.75], [144.53, -17.97], [144.68, -18.32], [145.0, -18.46], [145.5, -18.25], [146.03, -18.47], [146.25, -19.0], [146.03, -19.53], [145.68, -19.68], [145.53, -20.03], [145.0, -20.25], [144.47, -20.03], [144.32, -19.68], [143.97, -19.53], [143.82, -19.18], [143.47, -19.03], [143.25, -18.5]]]]}, "2020-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -18.5], [143.47, -17.97], [144.0, -17.75], [144.53, -17.97], [144.68, -18.32], [145.0, -18.46], [145.5, -18.25], [146.03, -18.47], [146.25, -19.0], [146.03, -19.53], [145.68, -19.68], [145.53, -20.03], [145.0, -20.25], [144.47, -20.03], [144.32, -19.68], [143.97, -19.53], [143.82, -19.18], [143.47, -19.03], [143.25, -18.5]]]]}, "2020-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -19.0], [143.97, -18.47], [144.5, -18.25], [145.0, -18.46], [145.5, -18.25], [146.03, -18.47], [146.25, -19.0], [146.03, -19.53], [145.68, -19.68], [145.53, -20.03], [145.0, -20.25], [144.47, -20.03], [144.32, -19.68], [143.97, -19.53], [143.75, -19.0]]]]}, "2020-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -19.0], [143.47, -18.47], [143.82, -18.32], [143.85, -18.25], [143.75, -18.0], [143.85, -17.75], [143.75, -17.5], [143.97, -16.97], [144.5, -16.75], [144.75, -16.85], [145.0, -16.75], [145.25, -16.85], [145.5, -16.75], [146.03, -16.97], [146.25, -17.5], [146.03, -18.03], [145.5, -18.25], [146.03, -18.47], [146.18, -18.82], [146.53, -18.97], [146.75, -19.5], [146.65, -19.75], [146.75, -20.0], [146.53, -20.53], [146.18, -20.68], [146.03, -21.03], [145.5, -21.25], [144.97, -21.03], [144.82, -20.68], [144.75, -20.65], [144.5, -20.75], [143.97, -20.53], [143.75, -20.0], [143.85, -19.75], [143.82, -19.68], [143.47, -19.53], [143.25, -19.0]], [[145.25, -18.15], [145.18, -18.18], [145.15, -18.25], [145.18, -18.32], [145.25, -18.35], [145.5, -18.25], [145.25, -18.15]]]]}, "2020-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -18.47], [143.82, -18.32], [143.85, -18.25], [143.75, -18.0], [143.85, -17.75], [143.75, -17.5], [143.97, -16.97], [144.5, -16.75], [144.75, -16.85], [145.0, -16.75], [145.25, -16.85], [145.5, -16.75], [146.03, -16.97], [146.25, -17.5], [146.15, -17.75], [146.18, -17.82], [146.53, -17.97], [146.75, -18.5], [146.65, -18.75], [146.68, -18.82], [147.03, -18.97], [147.25, -19.5], [147.03, -20.03], [146.68, -20.18], [146.53, -20.53], [146.18, -20.68], [146.03, -21.03], [145.5, -21.25], [144.97, -21.03], [144.82, -20.68], [144.75, -20.65], [144.5, -20.75], [143.97, -20.53], [143.82, -20.18], [143.47, -20.03], [143.25, -19.5], [143.35, -19.25], [143.25, -19.0], [143.47, -18.47]]]]}, "2020-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -18.47], [143.82, -18.32], [143.85, -18.25], [143.75, -18.0], [143.85, -17.75], [143.75, -17.5], [143.97, -16.97], [144.5, -16.75], [144.75, -16.85], [145.0, -16.75], [145.25, -16.85], [145.5, -16.75], [146.03, -16.97], [146.25, -17.5], [146.15, -17.75], [146.18, -17.82], [146.53, -17.97], [146.75, -18.5], [146.65, -18.75], [146.68, -18.82], [147.03, -18.97], [147.25, -19.5], [147.03, -20.03], [146.68, -20.18], [146.53, -20.53], [146.18, -20.68], [146.03, -21.03], [145.5, -21.25], [144.97, -21.03], [144.82, -20.68], [144.75, -20.65], [144.5, -20.75], [143.97, -20.53], [143.82, -20.18], [143.47, -20.03], [143.25, -19.5], [143.35, -19.25], [143.25, -19.0], [143.47, -18.47]]]]}, "2020-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -18.47], [143.82, -18.32], [143.85, -18.25], [143.75, -18.0], [143.85, -17.75], [143.75, -17.5], [143.97, -16.97], [144.5, -16.75], [144.75, -16.85], [145.0, -16.75], [145.25, -16.85], [145.5, -16.75], [146.03, -16.97], [146.25, -17.5], [146.15, -17.75], [146.18, -17.82], [146.53, -17.97], [146.75, -18.5], [146.65, -18.75], [146.68, -18.82], [147.03, -18.97], [147.25, -19.5], [147.03, -20.03], [146.68, -20.18], [146.53, -20.53], [146.18, -20.68], [146.03, -21.03], [145.5, -21.25], [144.97, -21.03], [144.82, -20.68], [144.75, -20.65], [144.5, -20.75], [143.97, -20.53], [143.82, -20.18], [143.47, -20.03], [143.25, -19.5], [143.35, -19.25], [143.25, -19.0], [143.47, -18.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.0700378766482572}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0957504213783213}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.230087915224033, 21.8238530847766, 22.18582752298454, 22.788253364669572, 22.30970223117157, 22.179288109318463, 21.973294440375867, 22.037391244044272]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.230087915224033, 21.463046246261797, 21.787824294244786, 22.549321694126434, 20.384109996468396, 20.00032183065963, 19.714908572331694, 20.216716973791904]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.717358600688442, -2.872506089558428, -2.481419778933244, -1.7910947035395377, -2.0422515532844634, -1.932417680378043, -2.1555101614139005, -2.10723259530285]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.717358600688442, -3.0700378766482572, -2.719083658198258, -1.9500307193515596, -2.8541876292700294, -2.698623074522459, -2.503402299719653, -2.76120364574075]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.329312126432148, -1.9894551925718735, -1.7153541509505625, -1.201616998073357, -1.4484328342731982, -1.440379437481077, -1.6492248757800154, -1.5927162411504696]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.329312126432148, -2.20295873571809, -1.9300685325072613, -1.2099964357522115, -1.7054106009231178, -1.7421253637909488, -1.926398084496716, -2.045932717418431]}}