{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:03.098506", "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-Aug-07_to_2014-Aug-10_43.5_24.5"}, "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": 2014080000417}, "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 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2014"}, "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": 76235.93946665063}, "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": ["Saudi Arabia"]}, "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": 24.5}, "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": 43.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 25.0], [42.47, 25.53], [43.0, 25.75], [43.25, 25.65], [43.5, 25.75], [43.75, 25.65], [44.0, 25.75], [44.25, 25.65], [44.5, 25.75], [44.75, 25.65], [45.0, 25.75], [45.53, 25.53], [45.68, 25.18], [46.03, 25.03], [46.18, 24.68], [46.25, 24.65], [46.5, 24.75], [47.03, 24.53], [47.25, 24.0], [47.03, 23.47], [46.63, 23.3], [46.75, 23.0], [46.65, 22.75], [46.75, 22.5], [46.53, 21.97], [46.0, 21.75], [45.47, 21.97], [45.32, 22.32], [45.25, 22.35], [45.18, 22.32], [45.03, 21.97], [44.5, 21.75], [43.97, 21.97], [43.75, 22.5], [43.85, 22.75], [43.82, 22.82], [43.47, 22.97], [43.32, 23.32], [42.97, 23.47], [42.75, 24.0], [42.85, 24.25], [42.82, 24.32], [42.47, 24.47], [42.25, 25.0]]]]}, "2014-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 25.0], [42.47, 25.53], [43.0, 25.75], [43.25, 25.65], [43.32, 25.68], [43.47, 26.03], [44.0, 26.25], [44.53, 26.03], [44.68, 25.68], [44.75, 25.65], [45.0, 25.75], [45.53, 25.53], [45.68, 25.18], [46.03, 25.03], [46.18, 24.68], [46.25, 24.65], [46.5, 24.75], [47.03, 24.53], [47.25, 24.0], [47.03, 23.47], [46.63, 23.3], [46.75, 23.0], [46.65, 22.75], [46.75, 22.5], [46.53, 21.97], [46.0, 21.75], [45.47, 21.97], [45.32, 22.32], [45.25, 22.35], [45.18, 22.32], [45.03, 21.97], [44.5, 21.75], [43.97, 21.97], [43.75, 22.5], [43.85, 22.75], [43.82, 22.82], [43.47, 22.97], [43.32, 23.32], [42.97, 23.47], [42.75, 24.0], [42.85, 24.25], [42.82, 24.32], [42.47, 24.47], [42.25, 25.0]]]]}, "2014-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 25.0], [42.47, 25.53], [43.0, 25.75], [43.25, 25.65], [43.32, 25.68], [43.47, 26.03], [44.0, 26.25], [44.53, 26.03], [44.68, 25.68], [44.75, 25.65], [45.0, 25.75], [45.53, 25.53], [45.68, 25.18], [46.03, 25.03], [46.18, 24.68], [46.25, 24.65], [46.5, 24.75], [47.03, 24.53], [47.25, 24.0], [47.03, 23.47], [46.63, 23.3], [46.75, 23.0], [46.65, 22.75], [46.75, 22.5], [46.53, 21.97], [46.0, 21.75], [45.47, 21.97], [45.32, 22.32], [45.25, 22.35], [45.18, 22.32], [45.03, 21.97], [44.5, 21.75], [43.97, 21.97], [43.75, 22.5], [43.85, 22.75], [43.82, 22.82], [43.47, 22.97], [43.32, 23.32], [42.97, 23.47], [42.75, 24.0], [42.85, 24.25], [42.82, 24.32], [42.47, 24.47], [42.25, 25.0]]]]}, "2014-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.25, 25.5], [43.47, 26.03], [44.0, 26.25], [44.53, 26.03], [44.75, 25.5], [44.65, 25.25], [44.75, 25.0], [44.65, 24.75], [44.75, 24.5], [44.53, 23.97], [44.0, 23.75], [43.75, 23.85], [43.5, 23.75], [42.97, 23.97], [42.75, 24.5], [42.97, 25.03], [43.32, 25.18], [43.35, 25.25], [43.25, 25.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.03197710250555}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2887313215907534}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.807025016331636, 33.615929617165534, 33.43338542146836, 33.35851569758961]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.55861976273155, 32.28568236595527, 32.23918073687935, 33.06582309842673]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.144712770310209, -2.303135302052386, -2.451301073617582, -2.0302792106171808]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.6407828795182695, -2.739128142869788, -3.03197710250555, -2.104471436098038]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.479819944169102, -1.687751100196175, -1.8527726138937004, -1.3722997859609478]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7160459293106416, -1.9932916252786304, -2.1784941980239165, -1.4518324097836568]}}