{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:55.706652", "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": "2016-Mar-29_to_2016-Mar-31_141.0_-29.5"}, "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": 2016030000682}, "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 29 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 31 2016"}, "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": 67526.16188602784}, "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": ["C.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": -29.5}, "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": 141.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.97, -26.97], [138.5, -26.75], [138.75, -26.85], [139.0, -26.75], [139.25, -26.85], [139.5, -26.75], [140.03, -26.97], [140.25, -27.5], [140.15, -27.75], [140.2, -27.87], [140.5, -27.75], [140.75, -27.85], [141.0, -27.75], [141.53, -27.97], [141.68, -28.32], [142.03, -28.47], [142.25, -29.0], [142.15, -29.25], [142.18, -29.32], [142.25, -29.35], [142.5, -29.25], [142.75, -29.35], [143.0, -29.25], [143.53, -29.47], [143.75, -30.0], [143.65, -30.25], [143.75, -30.5], [143.53, -31.03], [143.0, -31.25], [142.5, -31.04], [142.0, -31.25], [141.75, -31.15], [141.5, -31.25], [140.97, -31.03], [140.82, -30.68], [140.75, -30.65], [140.5, -30.75], [139.97, -30.53], [139.75, -30.0], [139.85, -29.75], [139.82, -29.68], [139.75, -29.65], [139.5, -29.75], [138.97, -29.53], [138.75, -29.0], [138.85, -28.75], [138.82, -28.68], [138.75, -28.65], [138.5, -28.75], [137.97, -28.53], [137.75, -28.0], [137.85, -27.75], [137.75, -27.5], [137.97, -26.97]]]]}, "2016-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.97, -26.97], [138.5, -26.75], [138.75, -26.85], [139.0, -26.75], [139.25, -26.85], [139.5, -26.75], [140.03, -26.97], [140.25, -27.5], [140.15, -27.75], [140.2, -27.87], [140.5, -27.75], [140.75, -27.85], [141.0, -27.75], [141.53, -27.97], [141.68, -28.32], [142.03, -28.47], [142.25, -29.0], [142.15, -29.25], [142.18, -29.32], [142.25, -29.35], [142.5, -29.25], [142.75, -29.35], [143.0, -29.25], [143.53, -29.47], [143.75, -30.0], [143.65, -30.25], [143.75, -30.5], [143.53, -31.03], [143.0, -31.25], [142.5, -31.04], [142.0, -31.25], [141.75, -31.15], [141.5, -31.25], [140.97, -31.03], [140.82, -30.68], [140.75, -30.65], [140.5, -30.75], [139.97, -30.53], [139.75, -30.0], [139.85, -29.75], [139.82, -29.68], [139.75, -29.65], [139.5, -29.75], [138.97, -29.53], [138.75, -29.0], [138.85, -28.75], [138.82, -28.68], [138.75, -28.65], [138.5, -28.75], [137.97, -28.53], [137.75, -28.0], [137.85, -27.75], [137.75, -27.5], [137.97, -26.97]]]]}, "2016-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.97, -26.97], [138.5, -26.75], [138.75, -26.85], [139.0, -26.75], [139.25, -26.85], [139.5, -26.75], [140.03, -26.97], [140.25, -27.5], [140.15, -27.75], [140.2, -27.87], [140.5, -27.75], [140.75, -27.85], [141.0, -27.75], [141.53, -27.97], [141.68, -28.32], [142.03, -28.47], [142.25, -29.0], [142.15, -29.25], [142.18, -29.32], [142.25, -29.35], [142.5, -29.25], [142.75, -29.35], [143.0, -29.25], [143.53, -29.47], [143.75, -30.0], [143.65, -30.25], [143.75, -30.5], [143.53, -31.03], [143.0, -31.25], [142.5, -31.04], [142.0, -31.25], [141.75, -31.15], [141.5, -31.25], [140.97, -31.03], [140.82, -30.68], [140.75, -30.65], [140.5, -30.75], [139.97, -30.53], [139.75, -30.0], [139.85, -29.75], [139.82, -29.68], [139.75, -29.65], [139.5, -29.75], [138.97, -29.53], [138.75, -29.0], [138.85, -28.75], [138.82, -28.68], [138.75, -28.65], [138.5, -28.75], [137.97, -28.53], [137.75, -28.0], [137.85, -27.75], [137.75, -27.5], [137.97, -26.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.083828199063703}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.123973523968463}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.35513490086754, 18.259448879022102, 19.02114465658252]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.66884728453823, 16.96497830034633, 17.46033018190559]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.418022186719709, -5.382100905087077, -4.571797480098603]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.083828199063703, -5.79877943349959, -5.017776953198677]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5909141931923758, -1.6435344919645316, -1.421216904841946]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.787025027319902, -1.7859561974796874, -1.5630167244852289]}}