{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:22.933838", "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": "2010-Dec-29_to_2011-Jan-01_130.0_-3.0"}, "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": 2010120001331}, "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": "December 29 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 01 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 71001.7203537479}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Banda Sea", "Ceram Sea", "South Pacific Ocean"]}, "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": -3.0}, "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": 130.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "130.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.0, -3.25], [131.25, -3.35], [131.5, -3.25], [132.03, -3.47], [132.25, -4.0], [132.15, -4.25], [132.25, -4.5], [132.03, -5.03], [131.5, -5.25], [131.25, -5.15], [131.0, -5.25], [130.47, -5.03], [130.25, -4.5], [130.35, -4.25], [130.25, -4.0], [130.47, -3.47], [131.0, -3.25]]], [[[130.47, -2.53], [130.25, -2.0], [130.35, -1.75], [130.25, -1.5], [130.46, -1.0], [130.25, -0.5], [130.47, 0.03], [131.0, 0.25], [131.53, 0.03], [131.75, -0.5], [131.54, -1.0], [131.68, -1.32], [131.75, -1.35], [132.0, -1.25], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.03, -3.03], [131.5, -3.25], [130.97, -3.03], [130.82, -2.68], [130.47, -2.53]]]]}, "2010-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -2.47], [128.5, -2.25], [128.75, -2.35], [129.0, -2.25], [129.25, -2.35], [129.5, -2.25], [129.75, -2.35], [130.0, -2.25], [130.3, -2.37], [130.35, -2.25], [130.25, -2.0], [130.35, -1.75], [130.25, -1.5], [130.35, -1.25], [130.25, -1.0], [130.35, -0.75], [130.25, -0.5], [130.47, 0.03], [131.0, 0.25], [131.53, 0.03], [131.68, -0.32], [132.03, -0.47], [132.25, -1.0], [132.15, -1.25], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.15, -2.75], [132.25, -3.0], [132.15, -3.25], [132.25, -3.5], [132.15, -3.75], [132.25, -4.0], [132.15, -4.25], [132.25, -4.5], [132.03, -5.03], [131.5, -5.25], [131.25, -5.15], [131.0, -5.25], [130.47, -5.03], [130.25, -4.5], [130.35, -4.25], [130.32, -4.18], [129.97, -4.03], [129.82, -3.68], [129.75, -3.65], [129.5, -3.75], [129.25, -3.65], [129.18, -3.68], [129.03, -4.03], [128.5, -4.25], [127.97, -4.03], [127.75, -3.5], [127.85, -3.25], [127.75, -3.0], [127.97, -2.47]]]]}, "2010-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -2.47], [128.5, -2.25], [128.75, -2.35], [129.0, -2.25], [129.25, -2.35], [129.5, -2.25], [129.75, -2.35], [130.0, -2.25], [130.3, -2.37], [130.35, -2.25], [130.25, -2.0], [130.35, -1.75], [130.25, -1.5], [130.35, -1.25], [130.25, -1.0], [130.35, -0.75], [130.25, -0.5], [130.47, 0.03], [131.0, 0.25], [131.53, 0.03], [131.68, -0.32], [132.03, -0.47], [132.25, -1.0], [132.15, -1.25], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.15, -2.75], [132.25, -3.0], [132.15, -3.25], [132.25, -3.5], [132.15, -3.75], [132.25, -4.0], [132.15, -4.25], [132.25, -4.5], [132.03, -5.03], [131.5, -5.25], [131.25, -5.15], [131.0, -5.25], [130.47, -5.03], [130.25, -4.5], [130.35, -4.25], [130.32, -4.18], [129.97, -4.03], [129.82, -3.68], [129.75, -3.65], [129.5, -3.75], [129.25, -3.65], [129.18, -3.68], [129.03, -4.03], [128.5, -4.25], [127.97, -4.03], [127.75, -3.5], [127.85, -3.25], [127.75, -3.0], [127.97, -2.47]]]]}, "2011-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -2.47], [128.5, -2.25], [128.75, -2.35], [129.0, -2.25], [129.25, -2.35], [129.5, -2.25], [129.75, -2.35], [130.0, -2.25], [130.3, -2.37], [130.47, -1.97], [130.88, -1.8], [130.82, -1.68], [130.47, -1.53], [130.25, -1.0], [130.47, -0.47], [131.0, -0.25], [131.25, -0.35], [131.5, -0.25], [132.03, -0.47], [132.25, -1.0], [132.15, -1.25], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.13, -2.7], [132.25, -3.0], [132.15, -3.25], [132.25, -3.5], [132.15, -3.75], [132.25, -4.0], [132.15, -4.25], [132.25, -4.5], [132.03, -5.03], [131.5, -5.25], [130.97, -5.03], [130.75, -4.5], [130.85, -4.25], [130.82, -4.18], [130.75, -4.15], [130.5, -4.25], [129.97, -4.03], [129.82, -3.68], [129.75, -3.65], [129.5, -3.75], [129.25, -3.65], [129.18, -3.68], [129.03, -4.03], [128.5, -4.25], [127.97, -4.03], [127.75, -3.5], [127.85, -3.25], [127.75, -3.0], [127.97, -2.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.9358651095074038}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.021929079855464}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.530916049323878, 25.68919704931602, 25.351610425739352, 25.15590879763431]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.168528281864326, 23.004412828513296, 22.53981312664206, 22.735176948648757]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7363156323940643, -0.8875529226816614, -1.2150917334909848, -1.1159318958551196]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.8778812620346912, -1.1399914663304571, -1.387721319822731, -1.9358651095074038]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.369713094735469, -1.6420789119619068, -2.2663561301210193, -1.9583714091314186]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6808768285842433, -2.0373272594724385, -2.7480249621409336, -3.0883233108974886]}}