{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:48.263717", "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-Nov-29_to_2014-Dec-03_55.0_28.0"}, "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": 2014110001001}, "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": "November 29 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 03 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": 176909.5160292655}, "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", "Qatar"]}, "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": 28.0}, "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": 55.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "55.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 50.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 28.0], [52.97, 28.53], [53.5, 28.75], [53.75, 28.65], [54.0, 28.75], [54.25, 28.65], [54.5, 28.75], [54.75, 28.65], [55.0, 28.75], [55.53, 28.53], [55.75, 28.0], [55.53, 27.47], [55.0, 27.25], [54.75, 27.35], [54.68, 27.32], [54.53, 26.97], [54.0, 26.75], [53.47, 26.97], [53.32, 27.32], [52.97, 27.47], [52.75, 28.0]]]]}, "2014-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 28.5], [50.47, 29.03], [50.82, 29.18], [50.97, 29.53], [51.32, 29.68], [51.47, 30.03], [52.0, 30.25], [52.53, 30.03], [52.75, 29.5], [52.65, 29.25], [52.68, 29.18], [52.75, 29.15], [53.0, 29.25], [53.53, 29.03], [53.68, 28.68], [53.75, 28.65], [54.0, 28.75], [54.25, 28.65], [54.5, 28.75], [54.75, 28.65], [55.0, 28.75], [55.53, 28.53], [55.75, 28.0], [55.53, 27.47], [55.0, 27.25], [54.75, 27.35], [54.68, 27.32], [54.65, 27.25], [54.75, 27.0], [54.65, 26.75], [54.68, 26.68], [54.75, 26.65], [55.0, 26.75], [55.25, 26.65], [55.5, 26.75], [56.03, 26.53], [56.25, 26.0], [56.03, 25.47], [55.68, 25.32], [55.53, 24.97], [55.18, 24.82], [55.03, 24.47], [54.68, 24.32], [54.53, 23.97], [54.0, 23.75], [53.75, 23.85], [53.5, 23.75], [53.25, 23.85], [53.0, 23.75], [52.75, 23.85], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.25, 24.0], [51.35, 24.25], [51.32, 24.32], [50.97, 24.47], [50.75, 25.0], [50.85, 25.25], [50.75, 25.5], [50.85, 25.75], [50.75, 26.0], [50.85, 26.25], [50.75, 26.5], [50.85, 26.75], [50.75, 27.0], [50.85, 27.25], [50.75, 27.5], [50.85, 27.75], [50.82, 27.82], [50.47, 27.97], [50.25, 28.5]]]]}, "2014-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 28.5], [50.47, 29.03], [50.82, 29.18], [50.97, 29.53], [51.32, 29.68], [51.47, 30.03], [52.0, 30.25], [52.53, 30.03], [52.75, 29.5], [52.65, 29.25], [52.68, 29.18], [52.75, 29.15], [53.0, 29.25], [53.53, 29.03], [53.68, 28.68], [53.75, 28.65], [54.0, 28.75], [54.25, 28.65], [54.5, 28.75], [54.75, 28.65], [55.0, 28.75], [55.53, 28.53], [55.75, 28.0], [55.53, 27.47], [55.0, 27.25], [54.75, 27.35], [54.68, 27.32], [54.65, 27.25], [54.75, 27.0], [54.65, 26.75], [54.68, 26.68], [54.75, 26.65], [55.0, 26.75], [55.25, 26.65], [55.5, 26.75], [56.03, 26.53], [56.25, 26.0], [56.03, 25.47], [55.68, 25.32], [55.53, 24.97], [55.18, 24.82], [55.03, 24.47], [54.68, 24.32], [54.53, 23.97], [54.0, 23.75], [53.75, 23.85], [53.5, 23.75], [53.25, 23.85], [53.0, 23.75], [52.75, 23.85], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.25, 24.0], [51.35, 24.25], [51.32, 24.32], [50.97, 24.47], [50.75, 25.0], [50.85, 25.25], [50.75, 25.5], [50.85, 25.75], [50.75, 26.0], [50.85, 26.25], [50.75, 26.5], [50.85, 26.75], [50.75, 27.0], [50.85, 27.25], [50.75, 27.5], [50.85, 27.75], [50.82, 27.82], [50.47, 27.97], [50.25, 28.5]]]]}, "2014-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 28.5], [50.47, 29.03], [50.82, 29.18], [50.97, 29.53], [51.32, 29.68], [51.47, 30.03], [52.0, 30.25], [52.53, 30.03], [52.75, 29.5], [52.65, 29.25], [52.68, 29.18], [52.75, 29.15], [53.0, 29.25], [53.53, 29.03], [53.68, 28.68], [53.75, 28.65], [54.0, 28.75], [54.25, 28.65], [54.5, 28.75], [54.75, 28.65], [55.0, 28.75], [55.53, 28.53], [55.75, 28.0], [55.53, 27.47], [55.0, 27.25], [54.75, 27.35], [54.68, 27.32], [54.65, 27.25], [54.75, 27.0], [54.65, 26.75], [54.68, 26.68], [54.75, 26.65], [55.0, 26.75], [55.25, 26.65], [55.5, 26.75], [56.03, 26.53], [56.25, 26.0], [56.03, 25.47], [55.68, 25.32], [55.53, 24.97], [55.18, 24.82], [55.03, 24.47], [54.68, 24.32], [54.53, 23.97], [54.0, 23.75], [53.75, 23.85], [53.5, 23.75], [53.25, 23.85], [53.0, 23.75], [52.75, 23.85], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.25, 24.0], [51.35, 24.25], [51.32, 24.32], [50.97, 24.47], [50.75, 25.0], [50.85, 25.25], [50.75, 25.5], [50.85, 25.75], [50.75, 26.0], [50.85, 26.25], [50.75, 26.5], [50.85, 26.75], [50.75, 27.0], [50.85, 27.25], [50.75, 27.5], [50.85, 27.75], [50.82, 27.82], [50.47, 27.97], [50.25, 28.5]]]]}, "2014-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 29.03], [52.5, 29.25], [53.03, 29.03], [53.18, 28.68], [53.25, 28.65], [53.5, 28.75], [53.75, 28.65], [54.0, 28.75], [54.25, 28.65], [54.5, 28.75], [54.75, 28.65], [55.0, 28.75], [55.53, 28.53], [55.75, 28.0], [55.53, 27.47], [55.0, 27.25], [54.75, 27.35], [54.68, 27.32], [54.53, 26.97], [54.18, 26.82], [54.03, 26.47], [53.5, 26.25], [52.97, 26.47], [52.82, 26.82], [52.47, 26.97], [52.32, 27.32], [51.97, 27.47], [51.75, 28.0], [51.85, 28.25], [51.75, 28.5], [51.97, 29.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.8667583601384194}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.798883204306165}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.956958542520965, 18.721568566843075, 18.50155820743288, 18.38772230520908, 12.8657393080926]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.779484751883786, 6.846646549867387, 6.827699635624924, 6.221687085054441, 11.158746476372983]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.533712722481641, -2.7051224257856186, -2.8209590154476727, -2.8187636939506184, -3.2208231119549025]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7028967631445653, -4.445098313672474, -4.2932501744613205, -4.8667583601384194, -3.6163998724510975]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2869072877042178, -1.7825952730669261, -1.8402210100036196, -1.688846631104212, -1.3689435378422643]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.384940906180204, -2.158025542107237, -2.3353237679574903, -1.9478953649679613, -1.5557217708642]}}