{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:37.386603", "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": "2012-Jun-03_to_2012-Jun-08_53.5_25.0"}, "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": 2012060000184}, "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": "June 03 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 08 2012"}, "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": 58608.16529577351}, "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": ["Iran", "United Arab Emirates"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "W.C.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": ["Persian Gulf"]}, "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": 25.0}, "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": 53.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 56.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 25.97], [53.25, 26.5], [53.47, 27.03], [54.0, 27.25], 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24.75], [55.75, 24.5], [55.53, 23.97], [55.0, 23.75], [54.75, 23.85], [54.5, 23.75], [54.25, 23.85], [54.0, 23.75], [53.47, 23.97], [53.32, 24.32], [53.25, 24.35], [53.0, 24.25], [52.47, 24.47], [52.25, 25.0], [52.35, 25.25], [52.25, 25.5], [52.47, 26.03]]]]}, "2012-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.47, 26.03], [52.82, 26.18], [52.97, 26.53], [53.32, 26.68], [53.47, 27.03], [54.0, 27.25], [54.53, 27.03], [54.7, 26.63], [54.82, 26.68], [54.97, 27.03], [55.5, 27.25], [55.75, 27.15], [56.0, 27.25], [56.25, 27.15], [56.5, 27.25], [57.03, 27.03], [57.25, 26.5], [57.03, 25.97], [56.5, 25.75], [56.25, 25.85], [56.18, 25.82], [56.03, 25.47], [55.68, 25.32], [55.65, 25.25], [55.75, 25.0], [55.65, 24.75], [55.75, 24.5], [55.53, 23.97], [55.0, 23.75], [54.75, 23.85], [54.5, 23.75], [54.25, 23.85], [54.0, 23.75], [53.47, 23.97], [53.32, 24.32], [53.25, 24.35], [53.0, 24.25], [52.47, 24.47], [52.25, 25.0], [52.35, 25.25], [52.25, 25.5], [52.47, 26.03]]]]}, "2012-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.47, 26.03], [52.82, 26.18], [52.97, 26.53], [53.5, 26.75], [54.03, 26.53], [54.18, 26.18], [54.25, 26.15], [54.5, 26.25], [54.75, 26.15], [55.0, 26.25], [55.53, 26.03], [55.75, 25.5], [55.65, 25.25], [55.75, 25.0], [55.53, 24.47], [55.18, 24.32], [55.03, 23.97], [54.5, 23.75], [54.25, 23.85], [54.0, 23.75], [53.75, 23.85], [53.5, 23.75], [52.97, 23.97], [52.82, 24.32], [52.47, 24.47], [52.25, 25.0], [52.35, 25.25], [52.25, 25.5], [52.47, 26.03]]]]}, "2012-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.47, 26.03], [53.0, 26.25], [53.25, 26.15], [53.5, 26.25], [54.03, 26.03], [54.18, 25.68], [54.25, 25.65], [54.5, 25.75], [55.03, 25.53], [55.25, 25.0], [55.03, 24.47], [54.68, 24.32], [54.53, 23.97], [54.0, 23.75], [53.75, 23.85], [53.5, 23.75], [52.97, 23.97], [52.82, 24.32], [52.47, 24.47], [52.25, 25.0], [52.35, 25.25], [52.25, 25.5], [52.47, 26.03]]]]}, "2012-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.25, 25.0], [52.47, 25.53], [53.0, 25.75], [53.25, 25.65], [53.5, 25.75], [54.03, 25.53], [54.25, 25.0], [54.15, 24.75], [54.25, 24.5], [54.03, 23.97], [53.5, 23.75], [52.97, 23.97], [52.82, 24.32], [52.47, 24.47], [52.25, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.0557583079501}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8195850807526344}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.129424549016846, 29.01648021719427, 29.073076908278438, 29.260638502635288, 29.307640825635872, 29.62586490498836]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.425608271771637, 28.02953520515962, 28.44088335964767, 28.677481188162517, 28.896064374997366, 29.546002760766953]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7724409395391503, -1.900411383673631, -1.895017091823584, -1.8072055018627355, -1.646288532302485, -1.4391909084667038]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.6176322656806406, -3.0557583079501, -2.8589859608072743, -2.291437032241504, -1.8146104623352812, -1.6303971373303625]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4928632066529803, -1.6046853275080486, -1.6177335012859824, -1.5149219714214759, -1.413167831258308, -1.2629784598356961]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.733627820174764, -2.2135273686727137, -1.9738176765288016, -1.8541890206741238, -1.5646806744657267, -1.4445774580035697]}}