{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:33.810192", "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-Jan-26_to_2014-Jan-29_141.5_-9.0"}, "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": 2014010001119}, "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": "January 26 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2014"}, "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": 82357.09858209027}, "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", "Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "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": ["Arafura Sea", "Coral 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": -9.0}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\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": 144.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.85, -9.25], [138.75, -9.0], [138.97, -8.47], [139.32, -8.32], [139.47, -7.97], [140.0, -7.75], [140.25, -7.85], [140.5, -7.75], [141.0, -7.96], [141.5, -7.75], [142.03, -7.97], [142.18, -8.32], [142.53, -8.47], [142.68, -8.82], [142.75, -8.85], [143.0, -8.75], [143.53, -8.97], [143.68, -9.32], [143.75, -9.35], [144.0, -9.25], [144.53, -9.47], [144.75, -10.0], [144.53, -10.53], [144.18, -10.68], [144.03, -11.03], [143.5, -11.25], [142.97, -11.03], [142.82, -10.68], [142.47, -10.53], [142.32, -10.18], [142.25, -10.15], [142.0, -10.25], [141.47, -10.03], [141.32, -9.68], [141.25, -9.65], [141.0, -9.75], [140.75, -9.65], [140.63, -9.7], [140.75, -10.0], [140.53, -10.53], [140.0, -10.75], [139.75, -10.65], [139.5, -10.75], [138.97, -10.53], [138.75, -10.0], [138.85, -9.75], [138.75, -9.5], [138.85, -9.25]]]]}, "2014-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -8.5], [137.97, -7.97], [138.5, -7.75], [138.75, -7.85], [139.0, -7.75], [139.25, -7.85], [139.5, -7.75], [139.75, -7.85], [140.0, -7.75], [140.25, 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[137.97, -7.97], [138.5, -7.75], [138.75, -7.85], [139.0, -7.75], [139.25, -7.85], [139.5, -7.75], [139.75, -7.85], [140.0, -7.75], [140.25, -7.85], [140.5, -7.75], [140.75, -7.85], [141.0, -7.75], [141.25, -7.85], [141.5, -7.75], [141.75, -7.85], [142.0, -7.75], [142.53, -7.97], [142.75, -8.5], [142.65, -8.75], [142.68, -8.82], [142.75, -8.85], [143.0, -8.75], [143.53, -8.97], [143.68, -9.32], [143.75, -9.35], [144.0, -9.25], [144.53, -9.47], [144.75, -10.0], [144.53, -10.53], [144.18, -10.68], [144.03, -11.03], [143.5, -11.25], [142.97, -11.03], [142.82, -10.68], [142.47, -10.53], [142.32, -10.18], [142.25, -10.15], [142.0, -10.25], [141.75, -10.15], [141.5, -10.25], [140.97, -10.03], [140.82, -9.68], [140.75, -9.65], [140.63, -9.7], [140.75, -10.0], [140.65, -10.25], [140.75, -10.5], [140.53, -11.03], [140.0, -11.25], [139.75, -11.15], [139.5, -11.25], [138.97, -11.03], [138.75, -10.5], [138.85, -10.25], [138.75, -10.0], [138.85, -9.75], [138.82, -9.68], [138.47, -9.53], [138.32, -9.18], [137.97, -9.03], [137.75, -8.5]]]]}, "2014-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.53, -9.97], [140.75, -10.5], [140.53, -11.03], [140.0, -11.25], [139.75, -11.15], [139.5, -11.25], [138.97, -11.03], [138.75, -10.5], [138.97, -9.97], [139.5, -9.75], [139.75, -9.85], [140.0, -9.75], [140.53, -9.97]]], [[[137.97, -7.97], [138.5, -7.75], [138.75, -7.85], [139.0, -7.75], [139.25, -7.85], [139.5, -7.75], [140.0, -7.96], [140.5, -7.75], [140.75, -7.85], [141.0, -7.75], [141.25, -7.85], [141.5, -7.75], [141.75, -7.85], [142.0, -7.75], [142.53, -7.97], [142.75, -8.5], [142.65, -8.75], [142.68, -8.82], [143.03, -8.97], [143.25, -9.5], [143.03, -10.03], [142.5, -10.25], [142.25, -10.15], [142.0, -10.25], [141.75, -10.15], [141.5, -10.25], [140.97, -10.03], [140.82, -9.68], [140.47, -9.53], [140.32, -9.18], [140.2, -9.13], [140.03, -9.53], [139.5, -9.75], [139.25, -9.65], [139.0, -9.75], [138.47, -9.53], [138.32, -9.18], [137.97, -9.03], [137.75, -8.5], [137.97, -7.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.955091882185286}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0784853875614366}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.275802420720254, 26.07402262026602, 26.19666495772634, 26.12698457246381]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.726574434670965, 25.203241034990242, 25.308607358508823, 25.248717867850303]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9844695690085908, -1.1773407384649184, -1.0553755732020347, -1.057729813870912]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2544557964209275, -1.955091882185286, -1.6356077544489835, -1.909240209972836]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4175925960121687, -1.722667907804838, -1.56899549404426, -1.4941070511298151]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6040736639788489, -2.2095560890089874, -1.8496500978650587, -2.1201228601823514]}}