{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:40.554610", "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": "2022-Jul-17_to_2022-Jul-21_146.0_-43.0"}, "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": 2022070000692}, "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": "July 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 50943.03274970617}, "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": ["S.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": ["Bass Strait", "Great Australian Bight"]}, "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": -43.0}, "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": 146.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "146.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.25}, "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": -43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.85, -40.25], [142.75, -40.0], [142.97, -39.47], [143.5, -39.25], [143.75, -39.35], [144.0, -39.25], [144.53, -39.47], [144.68, -39.82], [144.75, -39.85], [145.0, -39.75], [145.53, -39.97], [145.7, -40.37], [146.0, -40.25], [146.53, -40.47], [146.75, -41.0], [146.54, -41.5], [146.68, -41.82], [147.03, -41.97], [147.25, -42.5], [147.03, -43.03], [146.68, -43.18], [146.53, -43.53], [146.0, -43.75], [145.75, -43.65], [145.5, -43.75], [144.97, -43.53], [144.82, -43.18], [144.47, -43.03], [144.25, -42.5], [144.35, -42.25], [144.32, -42.18], [144.25, -42.15], [144.0, -42.25], [143.47, -42.03], [143.32, -41.68], [142.97, -41.53], [142.75, -41.0], [142.85, -40.75], [142.75, -40.5], [142.85, -40.25]]]]}, "2022-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.85, -40.25], [142.75, -40.0], [142.97, -39.47], [143.5, -39.25], [143.75, -39.35], [144.0, -39.25], [144.53, -39.47], [144.68, -39.82], [144.75, -39.85], [145.0, -39.75], [145.53, -39.97], [145.7, -40.37], [146.0, -40.25], [146.53, -40.47], [146.75, -41.0], [146.54, -41.5], [146.68, -41.82], [147.03, -41.97], [147.25, -42.5], [147.03, -43.03], [146.68, -43.18], [146.53, -43.53], [146.0, -43.75], [145.75, -43.65], [145.5, -43.75], [144.97, -43.53], [144.82, -43.18], [144.47, -43.03], [144.25, -42.5], [144.35, -42.25], [144.32, -42.18], [144.25, -42.15], [144.0, -42.25], [143.47, -42.03], [143.32, -41.68], [142.97, -41.53], [142.75, -41.0], [142.85, -40.75], [142.75, -40.5], [142.85, -40.25]]]]}, "2022-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.85, -40.25], [142.75, -40.0], [142.97, -39.47], [143.5, -39.25], [143.75, -39.35], [144.0, -39.25], [144.53, -39.47], [144.68, -39.82], [144.75, -39.85], [145.0, -39.75], [145.53, -39.97], [145.7, -40.37], [146.0, -40.25], [146.53, -40.47], [146.75, -41.0], [146.54, -41.5], [146.68, -41.82], [147.03, -41.97], [147.25, -42.5], [147.03, -43.03], [146.68, -43.18], [146.53, -43.53], [146.0, -43.75], [145.75, -43.65], [145.5, -43.75], [144.97, -43.53], [144.82, -43.18], [144.47, -43.03], [144.25, -42.5], [144.35, -42.25], [144.32, -42.18], [144.25, -42.15], [144.0, -42.25], [143.47, -42.03], [143.32, -41.68], [142.97, -41.53], [142.75, -41.0], [142.85, -40.75], [142.75, -40.5], [142.85, -40.25]]]]}, "2022-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.25, -42.0], [144.47, -41.47], [145.0, -41.25], [145.53, -41.47], [145.68, -41.82], [145.75, -41.85], [146.0, -41.75], [146.25, -41.85], [146.5, -41.75], [147.03, -41.97], [147.25, -42.5], [147.03, -43.03], [146.68, -43.18], [146.53, -43.53], [146.0, -43.75], [145.75, -43.65], [145.5, -43.75], [144.97, -43.53], [144.75, -43.0], [144.85, -42.75], [144.82, -42.68], [144.47, -42.53], [144.25, -42.0]]]]}, "2022-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.0, -42.25], [146.53, -42.47], [146.75, -43.0], [146.53, -43.53], [146.0, -43.75], [145.47, -43.53], [145.25, -43.0], [145.47, -42.47], [146.0, -42.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.683493034998207}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.6870693693304424}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.023732530814925, 6.467421712122416, 6.966211400692828, 4.994263507361495, 3.7288255998558952]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.5419145998904469, -2.3984373633104497, -0.45669397505440656, 2.1800078789136137, 3.7288255998558952]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4990292618002146, -3.0283583458720034, -2.5151775650768298, -2.6637076417481844, -3.237384310154141]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.935086461219612, -5.683493034998207, -4.344960312965895, -3.4718491153943773, -3.237384310154141]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8616742607699641, -2.089089609125689, -1.7465061348152042, -1.5197997630113322, -1.7198768716768564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.478699612220772, -2.8366054225274344, -2.5389455072708604, -1.7259485203935128, -1.7198768716768564]}}