{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:03.519167", "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-07_to_2014-Apr-11_56.0_17.5"}, "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": 2014040000288}, "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 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 52990.59979257318}, "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": ["Oman"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Arabian-Sea"]}, "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": ["Arabian 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": 17.5}, "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": 56.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "56.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 54.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 58.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.32, 18.68], [56.47, 19.03], [57.0, 19.25], [57.3, 19.13], [57.47, 19.53], [58.0, 19.75], [58.53, 19.53], [58.75, 19.0], [58.65, 18.75], [58.75, 18.5], [58.53, 17.97], [58.0, 17.75], [57.5, 17.96], [57.18, 17.82], [57.15, 17.75], [57.25, 17.5], [57.03, 16.97], [56.5, 16.75], [56.25, 16.85], [56.0, 16.75], [55.47, 16.97], [55.25, 17.5], [55.47, 18.03], [55.82, 18.18], [55.97, 18.53], [56.32, 18.68]]]]}, "2014-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.82, 17.18], [54.85, 17.25], [54.75, 17.5], [54.97, 18.03], [55.32, 18.18], [55.47, 18.53], [55.82, 18.68], [55.97, 19.03], [56.5, 19.25], [56.75, 19.15], [57.0, 19.25], [57.3, 19.13], [57.47, 19.53], [58.0, 19.75], [58.25, 19.65], [58.5, 19.75], [59.03, 19.53], [59.25, 19.0], [59.03, 18.47], [58.68, 18.32], [58.53, 17.97], [58.0, 17.75], [57.5, 17.96], [57.18, 17.82], [57.15, 17.75], [57.25, 17.5], [57.03, 16.97], [56.68, 16.82], [56.53, 16.47], [56.18, 16.32], [56.03, 15.97], [55.68, 15.82], [55.53, 15.47], [55.0, 15.25], [54.75, 15.35], [54.5, 15.25], [53.97, 15.47], [53.75, 16.0], [53.97, 16.53], [54.32, 16.68], [54.47, 17.03], [54.82, 17.18]]]]}, "2014-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.82, 17.18], [54.85, 17.25], [54.75, 17.5], [54.97, 18.03], [55.32, 18.18], [55.47, 18.53], [55.82, 18.68], [55.97, 19.03], [56.32, 19.18], [56.47, 19.53], [57.0, 19.75], [57.25, 19.65], [57.5, 19.75], [57.75, 19.65], [58.0, 19.75], [58.25, 19.65], [58.5, 19.75], [59.03, 19.53], [59.25, 19.0], [59.03, 18.47], [58.68, 18.32], [58.53, 17.97], [58.0, 17.75], [57.5, 17.96], [57.18, 17.82], [57.15, 17.75], [57.25, 17.5], [57.03, 16.97], [56.68, 16.82], [56.53, 16.47], [56.18, 16.32], [56.03, 15.97], [55.68, 15.82], [55.53, 15.47], [55.0, 15.25], [54.75, 15.35], [54.5, 15.25], [53.97, 15.47], [53.75, 16.0], [53.97, 16.53], [54.32, 16.68], [54.47, 17.03], [54.82, 17.18]]]]}, "2014-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.82, 17.18], [54.85, 17.25], [54.75, 17.5], [54.97, 18.03], [55.32, 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anomalies.", "value": [-1.1049601456747098, -1.240876117129698, -1.2676763462987646, -1.4086782194938678, -1.283104936673375]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2414211727218571, -1.67752522560113, -1.6890638410299061, -1.9114748619767852, -1.817841738448692]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.462339560717041, -1.5567549002769527, -1.5563277306814216, -1.6889051628067984, -1.3570411143765109]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5654682795808115, -2.195197129583758, -1.905029690899137, -2.057695913795786, -1.5388534719908447]}}