{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:59.959266", "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": "2015-May-26_to_2015-May-31_148.0_-7.5"}, "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": 2015050000883}, "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": "May 26 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 51956.632169358134}, "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": ["Papua New Guinea"]}, "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": ["Solomon 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": -7.5}, "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": 148.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.5, -7.75], [151.03, -7.97], [151.18, -8.32], [151.53, -8.47], [151.75, -9.0], [151.65, -9.25], [151.75, -9.5], [151.53, -10.03], [151.18, -10.18], [151.03, -10.53], [150.5, -10.75], [149.97, -10.53], [149.75, -10.0], [149.96, -9.5], [149.75, -9.0], [149.85, -8.75], [149.75, -8.5], [149.97, -7.97], [150.5, -7.75]]], [[[147.47, -6.97], [148.0, -6.75], [148.53, -6.97], [148.75, -7.5], [148.63, -7.8], [149.03, -7.97], [149.25, -8.5], [149.03, -9.03], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.88, -8.2], [147.47, -8.03], [147.25, -7.5], [147.47, -6.97]]]]}, "2015-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.25, -7.5], [147.47, -6.97], [148.0, -6.75], [148.53, -6.97], [148.75, -7.5], [148.63, -7.8], [149.03, -7.97], [149.2, -8.37], [149.5, -8.25], [149.75, -8.35], [149.82, -8.32], [149.97, -7.97], [150.5, -7.75], [150.75, -7.85], [151.0, -7.75], [151.53, -7.97], [151.75, -8.5], [151.65, -8.75], [151.75, -9.0], [151.65, -9.25], [151.75, -9.5], [151.53, -10.03], [151.18, -10.18], [151.03, -10.53], [150.5, -10.75], [150.25, -10.65], [150.0, -10.75], [149.47, -10.53], [149.25, -10.0], [149.38, -9.7], [148.97, -9.53], [148.8, -9.13], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.88, -8.2], [147.47, -8.03], [147.25, -7.5]]]]}, "2015-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, -6.47], [148.0, -6.25], [148.53, -6.47], [148.75, -7.0], [148.65, -7.25], [148.68, -7.32], [149.03, -7.47], [149.18, -7.82], [149.25, -7.85], [149.5, -7.75], [149.75, -7.85], [150.0, -7.75], [150.25, -7.85], [150.5, -7.75], [150.75, -7.85], [151.0, -7.75], [151.53, -7.97], [151.75, -8.5], [151.65, -8.75], [151.75, -9.0], [151.65, -9.25], [151.75, -9.5], [151.53, -10.03], [151.18, -10.18], [151.03, -10.53], [150.5, -10.75], [150.25, -10.65], [150.0, -10.75], [149.47, -10.53], [149.25, -10.0], [149.38, -9.7], [148.97, -9.53], [148.82, -9.18], [148.75, -9.15], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.85, -8.25], [147.82, -8.18], [147.47, -8.03], [147.25, -7.5], [147.35, -7.25], [147.25, -7.0], [147.47, -6.47]]]]}, "2015-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.35, -6.75], [147.25, -6.5], [147.47, -5.97], [148.0, -5.75], [148.53, -5.97], [148.75, -6.5], [148.65, -6.75], [148.75, -7.0], [148.65, -7.25], [148.68, -7.32], [149.03, -7.47], [149.18, -7.82], [149.25, -7.85], [149.5, -7.75], [149.75, -7.85], [150.0, -7.75], [150.25, -7.85], [150.5, -7.75], [150.75, -7.85], [151.0, -7.75], [151.53, -7.97], [151.75, -8.5], [151.65, -8.75], [151.75, -9.0], [151.65, -9.25], [151.75, -9.5], [151.53, -10.03], [151.18, -10.18], [151.03, -10.53], [150.5, -10.75], [150.25, -10.65], [150.0, -10.75], [149.47, -10.53], [149.25, -10.0], [149.38, -9.7], [148.97, -9.53], [148.82, -9.18], [148.75, -9.15], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.85, -8.25], [147.82, -8.18], [147.47, -8.03], [147.25, -7.5], [147.35, -7.25], [147.25, -7.0], [147.35, -6.75]]]]}, "2015-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.35, -6.75], [147.25, -6.5], [147.47, -5.97], [148.0, -5.75], [148.53, -5.97], [148.75, -6.5], [148.65, -6.75], [148.75, -7.0], [148.65, -7.25], [148.68, -7.32], [149.03, -7.47], [149.18, -7.82], [149.25, -7.85], [149.5, -7.75], [149.75, -7.85], [150.0, -7.75], [150.5, -7.96], [151.0, -7.75], [151.53, -7.97], [151.75, -8.5], [151.65, -8.75], [151.75, -9.0], [151.65, -9.25], [151.75, -9.5], [151.53, -10.03], [151.18, -10.18], [151.03, -10.53], [150.5, -10.75], [150.25, -10.65], [150.0, -10.75], [149.47, -10.53], [149.25, -10.0], [149.38, -9.7], [148.97, -9.53], [148.82, -9.18], [148.75, -9.15], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.85, -8.25], [147.82, -8.18], [147.47, -8.03], [147.25, -7.5], [147.35, -7.25], [147.25, -7.0], [147.35, -6.75]]]]}, "2015-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.5, -7.75], [150.03, -7.97], [150.25, -8.5], [150.15, -8.75], [150.25, -9.0], [150.13, -9.3], [150.53, -9.47], [150.75, -10.0], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.379664473312744, 23.876087443635413, 24.063884988489292, 24.174537152768096, 23.766631950203077, 24.25886255842255]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8291423798550243, -0.915415796333863, -0.8498455374783127, -0.8951717093449929, -0.9281825163811277, -0.7762563228974008]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1734104229583409, -1.1102734959071086, -0.9651577937325442, -1.0577520180748365, -1.1732176818289872, -0.8798071869878754]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5050786201008957, -1.6341113169349841, -1.5031623907689564, -1.6037119343428508, -1.701579310475723, -1.4101426047551902]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2183401974088413, -2.158365713904858, -1.7482857518485662, -1.949590023593705, -2.2322347503575126, -1.5342311737317453]}}