{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:04.058833", "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": "2014-Apr-11_to_2014-Apr-20_128.0_-21.5"}, "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": 2014040000442}, "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": "April 11 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 249454.6093670109}, "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", "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": -21.5}, "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": 128.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.0, -23.25], [132.53, -23.47], [132.75, -24.0], [132.53, -24.53], [132.0, -24.75], [131.47, -24.53], [131.25, -24.0], [131.47, -23.47], [132.0, -23.25]]]]}, "2014-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, -21.25], [127.32, -21.18], [126.97, -21.03], [126.75, -20.5], [126.97, -19.97], [127.5, -19.75], [127.75, -19.85], [128.0, -19.75], [128.3, -19.87], [128.35, -19.75], [128.25, -19.5], [128.35, -19.25], [128.25, -19.0], [128.47, -18.47], [129.0, -18.25], [129.25, -18.35], [129.5, -18.25], [129.75, -18.35], [130.0, -18.25], [130.53, -18.47], [130.75, -19.0], [130.65, -19.25], [130.75, -19.5], [130.65, -19.75], [130.68, -19.82], [131.03, -19.97], [131.18, -20.32], [131.53, -20.47], [131.68, -20.82], [132.03, -20.97], [132.18, -21.32], [132.53, -21.47], [132.75, -22.0], [132.65, -22.25], [132.75, -22.5], [132.54, -23.0], [132.75, -23.5], [132.65, -23.75], [132.75, -24.0], [132.53, -24.53], [132.0, -24.75], [131.47, -24.53], [131.3, -24.12], [131.0, -24.25], [130.75, -24.15], [130.5, -24.25], [130.25, -24.15], [130.0, -24.25], [129.75, -24.15], [129.5, -24.25], [129.25, -24.15], [129.0, -24.25], [128.47, -24.03], [128.25, -23.5], [128.35, -23.25], [128.32, -23.18], [128.25, -23.15], [128.0, -23.25], [127.5, -23.04], [127.0, -23.25], [126.47, -23.03], [126.25, -22.5], [126.47, -21.97], [126.82, -21.82], [126.97, -21.47], [127.32, -21.32], [127.35, -21.25]]], [[[126.97, -18.47], [127.5, -18.25], [128.03, -18.47], [128.25, -19.0], [128.03, -19.53], [127.5, -19.75], [126.97, -19.53], [126.75, -19.0], [126.97, -18.47]]]]}, "2014-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.47, -20.47], [126.82, -20.32], [126.85, -20.25], [126.75, -20.0], [126.85, -19.75], [126.75, -19.5], [126.85, -19.25], [126.75, -19.0], [126.97, -18.47], [127.5, -18.25], [128.03, -18.47], [128.25, -19.0], [128.35, -18.75], [128.25, -18.5], [128.47, -17.97], [129.0, -17.75], [129.25, -17.85], [129.5, -17.75], [130.03, -17.97], [130.18, -18.32], [130.53, -18.47], [130.75, -19.0], [130.65, -19.25], [130.75, -19.5], [130.65, -19.75], [130.68, -19.82], [131.03, -19.97], [131.18, -20.32], [131.53, -20.47], [131.68, -20.82], [132.03, -20.97], [132.18, -21.32], [132.53, -21.47], [132.75, -22.0], [132.65, -22.25], [132.75, -22.5], [132.54, -23.0], [132.68, -23.32], [133.03, -23.47], [133.25, -24.0], [133.03, -24.53], [132.68, -24.68], [132.53, -25.03], [132.18, -25.18], [132.15, -25.25], [132.25, -25.5], [132.03, -26.03], [131.5, -26.25], [130.97, -26.03], [130.8, -25.62], [130.5, -25.75], [129.97, -25.53], [129.82, -25.18], [129.75, -25.15], [129.5, -25.25], [128.97, -25.03], [128.82, -24.68], [128.47, -24.53], [128.25, -24.0], [128.35, -23.75], [128.25, -23.5], [128.35, -23.25], [128.32, -23.18], [128.25, -23.15], [128.0, -23.25], [127.5, -23.04], [127.0, -23.25], [126.47, -23.03], [126.25, -22.5], [126.46, -22.0], [126.25, -21.5], [126.35, -21.25], [126.25, -21.0], [126.47, -20.47]], [[128.15, -19.25], [128.25, -19.5], [128.35, -19.25], [128.25, -19.0], [128.15, -19.25]], [[128.15, -19.75], [128.18, -19.82], [128.25, -19.85], [128.32, -19.82], [128.35, -19.75], [128.25, -19.5], [128.15, -19.75]]]]}, "2014-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, -19.5], [125.47, -18.97], [126.0, -18.75], [126.25, -18.85], [126.5, -18.75], [126.75, -18.85], [126.82, -18.82], [126.97, -18.47], [127.5, -18.25], [128.03, -18.47], [128.25, -19.0], [128.35, -18.75], [128.25, -18.5], [128.47, -17.97], [129.0, -17.75], [129.25, -17.85], [129.5, -17.75], [130.03, -17.97], [130.18, -18.32], [130.53, -18.47], [130.75, -19.0], [130.65, -19.25], [130.75, -19.5], [130.65, -19.75], [130.68, -19.82], [131.03, -19.97], [131.18, -20.32], [131.53, -20.47], [131.68, -20.82], [132.03, -20.97], [132.18, -21.32], [132.53, -21.47], [132.75, -22.0], [132.65, -22.25], [132.75, -22.5], [132.54, -23.0], [132.68, -23.32], [133.03, -23.47], [133.25, -24.0], [133.03, -24.53], [132.68, -24.68], [132.53, -25.03], [132.18, -25.18], [132.15, -25.25], [132.25, -25.5], [132.03, -26.03], [131.5, -26.25], [130.97, -26.03], [130.8, -25.62], [130.5, -25.75], [129.97, -25.53], [129.82, -25.18], [129.75, -25.15], [129.5, -25.25], [128.97, -25.03], [128.82, -24.68], [128.47, -24.53], [128.25, -24.0], [128.35, -23.75], [128.25, -23.5], [128.35, -23.25], [128.32, -23.18], [128.25, -23.15], [128.0, -23.25], [127.5, -23.04], [127.0, -23.25], [126.47, -23.03], [126.25, -22.5], [126.46, -22.0], [126.25, -21.5], [126.35, -21.25], [126.25, -21.0], [126.38, -20.7], [125.97, -20.53], [125.82, -20.18], [125.47, -20.03], [125.25, -19.5]], [[128.15, -19.25], [128.18, -19.32], [128.25, -19.35], [128.32, -19.32], [128.35, -19.25], [128.25, -19.0], [128.15, -19.25]]]]}, "2014-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, -19.5], [125.47, -18.97], [126.0, -18.75], [126.25, -18.85], [126.5, -18.75], [126.75, -18.85], [126.82, -18.82], [126.97, -18.47], [127.5, -18.25], [128.03, -18.47], [128.25, -19.0], [128.35, -18.75], [128.25, -18.5], [128.47, -17.97], [129.0, -17.75], [129.25, -17.85], [129.5, -17.75], [130.03, -17.97], [130.18, -18.32], [130.53, -18.47], [130.75, -19.0], [130.65, -19.25], [130.75, -19.5], [130.65, -19.75], [130.75, -20.0], [130.65, -20.25], [130.75, -20.5], [130.53, -21.03], [130.0, -21.25], [130.53, -21.47], [130.75, -22.0], [130.65, -22.25], [130.75, -22.5], [130.65, -22.75], [130.68, -22.82], [130.75, -22.85], [131.0, -22.75], [131.53, -22.97], [131.68, -23.32], [131.75, -23.35], [132.0, -23.25], [132.25, -23.35], [132.5, -23.25], [133.03, -23.47], [133.25, -24.0], [133.03, -24.53], [132.68, -24.68], [132.53, -25.03], [132.18, -25.18], [132.15, -25.25], [132.25, -25.5], [132.03, -26.03], [131.5, -26.25], [130.97, -26.03], [130.8, -25.62], [130.5, -25.75], [129.97, -25.53], [129.82, -25.18], [129.75, -25.15], [129.5, -25.25], [128.97, -25.03], [128.82, -24.68], [128.47, -24.53], [128.25, -24.0], [128.35, -23.75], [128.25, -23.5], [128.35, -23.25], [128.32, -23.18], [128.25, -23.15], [128.0, -23.25], [127.5, -23.04], [127.0, -23.25], [126.47, -23.03], [126.25, -22.5], [126.46, -22.0], [126.25, -21.5], [126.35, -21.25], [126.25, -21.0], [126.38, -20.7], [125.97, -20.53], [125.82, -20.18], [125.47, -20.03], [125.25, -19.5]], [[128.15, -19.25], [128.18, -19.32], [128.25, -19.35], [128.32, -19.32], [128.35, -19.25], [128.25, -19.0], [128.15, -19.25]], [[129.75, -21.15], [129.5, -21.25], [129.75, -21.35], [130.0, -21.25], [129.75, -21.15]], [[129.2, -21.12], [129.15, -21.25], [129.18, -21.32], [129.25, -21.35], [129.5, -21.25], [129.2, -21.12]]]]}, "2014-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.75, -23.85], [131.0, -23.75], [131.53, -23.97], [131.75, -24.5], [131.53, -25.03], [131.18, -25.18], [131.03, -25.53], [130.5, -25.75], [129.97, -25.53], [129.82, -25.18], [129.47, -25.03], [129.32, -24.68], [128.97, -24.53], [128.75, -24.0], [128.97, -23.47], [129.5, -23.25], [129.75, -23.35], [130.0, -23.25], [130.53, -23.47], [130.68, -23.82], [130.75, -23.85]]], [[[125.47, -18.97], [126.0, -18.75], [126.25, -18.85], [126.5, -18.75], [126.75, -18.85], [127.0, -18.75], [127.25, -18.85], [127.5, -18.75], [128.03, -18.97], [128.18, -19.32], [128.25, -19.35], [128.32, -19.32], [128.35, -19.25], [128.25, -19.0], [128.47, -18.47], [129.0, -18.25], [129.25, -18.35], [129.5, -18.25], [130.03, -18.47], [130.18, -18.82], [130.53, -18.97], [130.75, -19.5], [130.65, -19.75], [130.75, -20.0], [130.65, -20.25], [130.75, -20.5], [130.53, -21.03], [130.0, -21.25], [129.75, -21.15], [129.5, -21.25], [130.03, -21.47], [130.18, -21.82], [130.53, -21.97], [130.75, -22.5], [130.53, -23.03], [130.0, -23.25], [129.75, -23.15], [129.5, -23.25], [128.97, -23.03], [128.82, -22.68], [128.75, -22.65], [128.5, -22.75], [128.25, -22.65], [128.0, -22.75], [127.75, -22.65], [127.5, -22.75], [126.97, -22.53], [126.82, -22.18], [126.47, -22.03], [126.25, -21.5], [126.47, -20.97], [126.82, -20.82], [126.85, -20.75], [126.8, -20.62], [126.5, -20.75], [125.97, -20.53], [125.82, -20.18], [125.47, -20.03], [125.25, -19.5], [125.47, -18.97]], [[129.07, -21.07], [129.18, -21.32], [129.25, -21.35], [129.5, -21.25], [129.07, -21.07]]]]}, "2014-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, -20.97], [127.5, -20.75], [127.75, -20.85], [128.0, -20.75], [128.53, -20.97], [128.75, -21.5], [128.65, -21.75], [128.75, -22.0], [128.53, -22.53], [128.0, -22.75], [127.47, -22.53], [127.32, -22.18], [126.97, -22.03], [126.75, -21.5], [126.97, -20.97]]], [[[128.97, -20.03], [128.75, -19.5], [128.97, -18.97], [129.5, -18.75], [130.03, -18.97], [130.25, -19.5], [130.03, -20.03], [129.5, -20.25], [128.97, -20.03]]]]}, "2014-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, -20.97], [127.5, -20.75], [127.75, -20.85], [128.0, -20.75], [128.53, -20.97], [128.75, -21.5], [128.65, -21.75], [128.75, -22.0], [128.53, -22.53], [128.0, -22.75], [127.47, -22.53], [127.32, -22.18], [126.97, -22.03], [126.75, -21.5], [126.97, -20.97]]], [[[128.97, -20.03], [128.75, -19.5], [128.97, -18.97], [129.5, -18.75], [130.03, -18.97], [130.25, -19.5], [130.03, -20.03], [129.5, -20.25], [128.97, -20.03]]]]}, "2014-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, -20.97], [127.5, -20.75], [127.75, -20.85], [128.0, -20.75], [128.53, -20.97], [128.75, -21.5], [128.65, -21.75], [128.75, -22.0], [128.53, -22.53], [128.0, -22.75], [127.47, -22.53], [127.32, -22.18], [126.97, -22.03], [126.75, -21.5], [126.97, -20.97]]], [[[128.97, -20.03], [128.75, -19.5], [128.97, -18.97], [129.5, -18.75], [130.03, -18.97], [130.25, -19.5], [130.03, -20.03], [129.5, -20.25], [128.97, -20.03]]]]}, "2014-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, -22.03], [126.75, -21.5], [126.97, -20.97], [127.5, -20.75], [127.75, -20.85], [128.0, -20.75], [128.53, -20.97], [128.75, -21.5], [128.53, -22.03], [128.0, -22.25], [127.75, -22.15], [127.5, -22.25], [126.97, -22.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.087027947683964}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.484936316861397}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.261042629279984, 21.751204782906825, 21.31589251182612, 21.175591265980643, 21.709917979713452, 22.707652289826683, 22.483183404567058, 22.45199296281089, 21.87039544954513, 21.745363468297455]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.261042629279984, 17.395223292082278, 16.53323992028237, 16.56342670920975, 17.648066600872653, 19.33767753610266, 21.777943583201193, 21.907955226560887, 21.345678030249246, 21.223695609519837]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.357768635714876, -4.619999965102216, -4.563089446548325, -4.786492993903005, -4.262917805433245, -3.931086873834869, -4.134153921006515, -4.047485246450506, -4.459519038596653, -4.458759052637788]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.357768635714876, -5.342321601296362, -5.835842198142416, -6.087027947683964, -5.8559079711159825, -5.412009445155945, -4.707771271557306, -4.474388637622155, -4.876567584392603, -4.845571740417256]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.511494810227867, -1.5969198163714071, -1.614722344615108, -1.7711353416724764, -1.6406753447267286, -1.5450985758358013, -1.5644459346458912, -1.4903657203975733, -1.5847270247939522, -1.5419113297922826]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.511494810227867, -1.8286906569138395, -1.901124274862062, -2.304564127826014, -2.24076507203961, -2.0464668590500343, -1.7533976289259692, -1.630022191350642, -1.7213560281143176, -1.653147886726296]}}