{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:54.531288", "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": "2023-Nov-10_to_2023-Nov-12_136.0_-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": 2023110000252}, "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": "November 10 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 12 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 79783.61748884174}, "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": -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": 136.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 138.25}, "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": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -17.47], [132.82, -17.32], [132.85, -17.25], [132.82, -17.18], [132.47, -17.03], [132.25, -16.5], [132.47, -15.97], [133.0, -15.75], [133.5, -15.96], [133.82, -15.82], [133.97, -15.47], [134.5, -15.25], [135.03, -15.47], [135.18, -15.82], [135.25, -15.85], [135.5, -15.75], [135.75, -15.85], [136.0, -15.75], [136.25, -15.85], [136.5, -15.75], [136.75, -15.85], [137.0, -15.75], [137.25, -15.85], [137.5, -15.75], [137.75, -15.85], [138.0, -15.75], [138.53, -15.97], [138.75, -16.5], [138.53, -17.03], [138.0, -17.25], [137.75, -17.15], [137.68, -17.18], [137.53, -17.53], [137.18, -17.68], [137.03, -18.03], [136.5, -18.25], [135.97, -18.03], [135.82, -17.68], [135.75, -17.65], [135.68, -17.68], [135.53, -18.03], [135.0, -18.25], [134.75, -18.15], [134.5, -18.25], [134.25, -18.15], [134.18, -18.18], [134.15, -18.25], [134.25, -18.5], [134.03, -19.03], [133.5, -19.25], [133.25, -19.15], [133.0, -19.25], [132.47, -19.03], [132.25, -18.5], [132.35, -18.25], [132.25, -18.0], [132.47, -17.47]]]]}, "2023-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -17.47], [132.82, -17.32], [132.85, -17.25], [132.82, -17.18], [132.47, -17.03], [132.25, -16.5], [132.47, -15.97], [133.0, -15.75], [133.5, -15.96], [133.82, -15.82], [133.97, -15.47], [134.5, -15.25], [135.03, -15.47], [135.18, -15.82], [135.25, -15.85], [135.5, -15.75], [135.75, -15.85], [136.0, -15.75], [136.25, -15.85], [136.5, -15.75], [136.75, -15.85], [137.0, -15.75], [137.25, -15.85], [137.5, -15.75], [137.75, -15.85], [138.0, -15.75], [138.53, -15.97], [138.75, -16.5], [138.53, -17.03], [138.0, -17.25], [137.75, -17.15], [137.68, -17.18], [137.53, -17.53], [137.18, -17.68], [137.03, -18.03], [136.5, -18.25], [135.97, -18.03], [135.82, -17.68], [135.75, -17.65], [135.68, -17.68], [135.53, -18.03], [135.0, -18.25], [134.75, -18.15], [134.5, -18.25], [134.25, -18.15], [134.18, -18.18], [134.15, -18.25], [134.25, -18.5], [134.03, -19.03], [133.5, -19.25], [133.25, -19.15], [133.0, -19.25], [132.47, -19.03], [132.25, -18.5], [132.35, -18.25], [132.25, -18.0], [132.47, -17.47]]]]}, "2023-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -17.47], [132.82, -17.32], [132.85, -17.25], [132.82, -17.18], [132.47, -17.03], [132.25, -16.5], [132.47, -15.97], [133.0, -15.75], [133.5, -15.96], [133.82, -15.82], [133.97, -15.47], [134.5, -15.25], [135.03, -15.47], [135.18, -15.82], [135.25, -15.85], [135.5, -15.75], [135.75, -15.85], [136.0, -15.75], [136.25, -15.85], [136.5, -15.75], [136.75, -15.85], [137.0, -15.75], [137.25, -15.85], [137.5, -15.75], [137.75, -15.85], [138.0, -15.75], [138.53, -15.97], [138.75, -16.5], [138.53, -17.03], [138.0, -17.25], [137.75, -17.15], [137.68, -17.18], [137.53, -17.53], [137.18, -17.68], [137.03, -18.03], [136.5, -18.25], [135.97, -18.03], [135.82, -17.68], [135.75, -17.65], [135.68, -17.68], [135.53, -18.03], [135.0, -18.25], [134.75, -18.15], [134.5, -18.25], [134.25, -18.15], [134.18, -18.18], [134.15, -18.25], [134.25, -18.5], [134.03, -19.03], [133.5, -19.25], [133.25, -19.15], [133.0, -19.25], [132.47, -19.03], [132.25, -18.5], [132.35, -18.25], [132.25, -18.0], [132.47, -17.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.073426938676221}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.1203888034230567}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.26350898600549, 27.674691971346192, 27.158331480170148]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.39551757075475, 26.9161484604507, 26.522757560158766]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2007600797223184, -2.813511110348764, -3.3468952201980873]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.011185457470219, -4.005190680658018, -4.073426938676221]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7466741449385268, -1.541954956488863, -1.8237114865913644]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1440619229634676, -1.818481834132927, -2.3646518366456624]}}