{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:25.591869", "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": "2010-Aug-20_to_2010-Aug-23_59.0_22.5"}, "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": 2010080000910}, "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": "August 20 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2010"}, "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": 62698.154775415394}, "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", "United Arab Emirates"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "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": []}, "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": 22.5}, "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": 59.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.0\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": 59.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.35, 22.25], [56.25, 22.5], [56.47, 23.03], [57.0, 23.25], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.25, 23.15], [58.5, 23.25], [58.75, 23.15], [59.0, 23.25], [59.53, 23.03], [59.75, 22.5], [59.53, 21.97], [59.0, 21.75], [58.75, 21.85], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.03, 20.97], [57.5, 20.75], [57.25, 20.85], [57.0, 20.75], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25]]]]}, "2010-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 22.47], [53.75, 23.0], [53.97, 23.53], [54.5, 23.75], [54.75, 23.65], [54.82, 23.68], [54.85, 23.75], [54.75, 24.0], [54.97, 24.53], [55.5, 24.75], [55.75, 24.65], [56.0, 24.75], [56.53, 24.53], [56.7, 24.13], [57.0, 24.25], [57.53, 24.03], [57.7, 23.63], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.53, 21.97], [59.0, 21.75], [58.75, 21.85], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.03, 20.97], [57.5, 20.75], [57.25, 20.85], [57.0, 20.75], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25], [56.32, 22.32], [56.0, 22.46], [55.5, 22.25], [55.25, 22.35], [55.0, 22.25], [54.75, 22.35], [54.5, 22.25], [53.97, 22.47]]]]}, "2010-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 22.47], [53.75, 23.0], [53.97, 23.53], [54.5, 23.75], [54.75, 23.65], [54.82, 23.68], [54.85, 23.75], [54.75, 24.0], [54.97, 24.53], [55.5, 24.75], [55.75, 24.65], [56.0, 24.75], [56.53, 24.53], [56.7, 24.13], [57.0, 24.25], [57.53, 24.03], [57.7, 23.63], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.53, 21.97], [59.0, 21.75], [58.75, 21.85], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.03, 20.97], [57.5, 20.75], [57.25, 20.85], [57.0, 20.75], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25], [56.32, 22.32], [56.0, 22.46], [55.5, 22.25], [55.25, 22.35], [55.0, 22.25], [54.75, 22.35], [54.5, 22.25], [53.97, 22.47]]]]}, "2010-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 22.47], [53.75, 23.0], [53.97, 23.53], [54.5, 23.75], [54.75, 23.65], [54.82, 23.68], [54.85, 23.75], [54.75, 24.0], [54.97, 24.53], [55.5, 24.75], [55.75, 24.65], [56.0, 24.75], [56.53, 24.53], [56.7, 24.13], [57.0, 24.25], [57.53, 24.03], [57.7, 23.63], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.53, 21.97], [59.0, 21.75], [58.75, 21.85], [58.5, 21.75], [57.97, 21.97], [57.82, 22.32], [57.5, 22.46], [57.0, 22.25], [56.75, 22.35], [56.5, 22.25], [56.0, 22.46], [55.5, 22.25], [55.25, 22.35], [55.0, 22.25], [54.75, 22.35], [54.5, 22.25], [53.97, 22.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.68111709810637}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.545325016217413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.8804359282758, 30.122157899691388, 29.939974525813966, 31.887700048774718]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.131588231358705, 26.853869250285015, 26.35078508056546, 27.353292810864843]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2665935373802824, -3.969654534669623, -3.9846456314163716, -2.3872544339349537]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.9442417992422634, -5.68111709810637, -5.144577619714028, -3.2284831234610465]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.535064677768053, -2.20516441771394, -2.2182557920274677, -1.535863044252334]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.663679179008348, -3.06616952130617, -2.941923600789004, -1.8118449914019172]}}