{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:14.930929", "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": "2017-Jun-21_to_2017-Jun-23_44.5_32.0"}, "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": 2017060000651}, "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 21 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 23 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 91109.26264655597}, "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", "Iraq"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 32.0}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, 32.53], [43.32, 32.68], [43.35, 32.75], [43.25, 33.0], [43.47, 33.53], [43.82, 33.68], [43.85, 33.75], [43.75, 34.0], [43.85, 34.25], [43.75, 34.5], [43.85, 34.75], [43.75, 35.0], [43.97, 35.53], [44.5, 35.75], [44.75, 35.65], [45.0, 35.75], [45.53, 35.53], [45.75, 35.0], [45.65, 34.75], [45.68, 34.68], [45.75, 34.65], [46.0, 34.75], [46.53, 34.53], [46.75, 34.0], [46.53, 33.47], [46.13, 33.3], [46.18, 33.18], [46.53, 33.03], [46.75, 32.5], [46.65, 32.25], [46.75, 32.0], [46.65, 31.75], [46.75, 31.5], [46.53, 30.97], [46.18, 30.82], [46.03, 30.47], [45.5, 30.25], [45.25, 30.35], [45.0, 30.25], [44.75, 30.35], [44.5, 30.25], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [42.97, 30.97], [42.75, 31.5], [42.85, 31.75], [42.75, 32.0], [42.97, 32.53]]]]}, "2017-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, 32.53], [43.32, 32.68], [43.35, 32.75], [43.25, 33.0], [43.47, 33.53], [43.82, 33.68], [43.85, 33.75], [43.75, 34.0], [43.85, 34.25], [43.75, 34.5], [43.85, 34.75], [43.75, 35.0], [43.97, 35.53], [44.5, 35.75], [44.75, 35.65], [45.0, 35.75], [45.53, 35.53], [45.75, 35.0], [45.65, 34.75], [45.68, 34.68], [45.75, 34.65], [46.0, 34.75], [46.53, 34.53], [46.75, 34.0], [46.53, 33.47], [46.13, 33.3], [46.18, 33.18], [46.53, 33.03], [46.75, 32.5], [46.65, 32.25], [46.75, 32.0], [46.65, 31.75], [46.75, 31.5], [46.53, 30.97], [46.18, 30.82], [46.03, 30.47], [45.5, 30.25], [45.25, 30.35], [45.0, 30.25], [44.75, 30.35], [44.5, 30.25], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [42.97, 30.97], [42.75, 31.5], [42.85, 31.75], [42.75, 32.0], [42.97, 32.53]]]]}, "2017-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, 32.53], [43.32, 32.68], [43.35, 32.75], [43.25, 33.0], [43.47, 33.53], [43.82, 33.68], [43.85, 33.75], [43.75, 34.0], [43.85, 34.25], [43.75, 34.5], [43.85, 34.75], [43.75, 35.0], [43.97, 35.53], [44.5, 35.75], [44.75, 35.65], [45.0, 35.75], [45.53, 35.53], [45.75, 35.0], [45.65, 34.75], [45.68, 34.68], [45.75, 34.65], [46.0, 34.75], [46.53, 34.53], [46.75, 34.0], [46.53, 33.47], [46.13, 33.3], [46.18, 33.18], [46.53, 33.03], [46.75, 32.5], [46.65, 32.25], [46.75, 32.0], [46.65, 31.75], [46.75, 31.5], [46.53, 30.97], [46.18, 30.82], [46.03, 30.47], [45.5, 30.25], [45.25, 30.35], [45.0, 30.25], [44.75, 30.35], [44.5, 30.25], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [42.97, 30.97], [42.75, 31.5], [42.85, 31.75], [42.75, 32.0], [42.97, 32.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.26615516351643}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.1762149629762235}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.922907975456496, 32.48918371493477, 32.90258619081777]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.878049841792517, 25.360882629059176, 25.723025713848813]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.9416799559274214, -3.443232921787954, -3.143732011213295]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7372832471433526, -4.26615516351643, -3.587187491282293]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5141654299181855, -1.831079940811607, -1.7092903817849006]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8529617965759002, -2.188576437157438, -2.0464446268259477]}}