{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:52.209901", "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": "2013-Nov-14_to_2013-Nov-18_56.5_27.0"}, "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": 2013110000686}, "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 14 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 18 2013"}, "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": 52712.69544168869}, "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"]}, "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": ["Gulf of Oman", "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": 27.0}, "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": 56.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "56.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.97, 27.53], [56.5, 27.75], [57.03, 27.53], [57.25, 27.0], [57.15, 26.75], [57.25, 26.5], [57.03, 25.97], [56.5, 25.75], [55.97, 25.97], [55.75, 26.5], [55.85, 26.75], [55.75, 27.0], [55.97, 27.53]]]]}, "2013-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 27.03], [54.0, 27.25], [54.3, 27.13], [54.47, 27.53], [55.0, 27.75], [55.25, 27.65], [55.5, 27.75], [56.0, 27.54], [56.5, 27.75], [57.03, 27.53], [57.18, 27.18], [57.53, 27.03], [57.75, 26.5], [57.65, 26.25], [57.75, 26.0], [57.65, 25.75], [57.75, 25.5], [57.65, 25.25], [57.75, 25.0], [57.53, 24.47], [57.0, 24.25], [56.75, 24.35], [56.5, 24.25], [55.97, 24.47], [55.75, 25.0], [55.85, 25.25], [55.8, 25.38], [55.5, 25.25], [55.25, 25.35], [55.0, 25.25], [54.75, 25.35], [54.5, 25.25], [54.25, 25.35], [54.0, 25.25], [53.47, 25.47], [53.25, 26.0], [53.35, 26.25], [53.25, 26.5], [53.47, 27.03]]]]}, "2013-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 27.03], [54.0, 27.25], [54.3, 27.13], [54.47, 27.53], [55.0, 27.75], [55.25, 27.65], [55.5, 27.75], [56.0, 27.54], [56.5, 27.75], [57.03, 27.53], [57.18, 27.18], [57.53, 27.03], [57.75, 26.5], [57.65, 26.25], [57.75, 26.0], [57.65, 25.75], [57.75, 25.5], [57.65, 25.25], [57.75, 25.0], [57.53, 24.47], [57.0, 24.25], [56.75, 24.35], [56.5, 24.25], [55.97, 24.47], [55.75, 25.0], [55.85, 25.25], [55.8, 25.38], [55.5, 25.25], [55.25, 25.35], [55.0, 25.25], [54.75, 25.35], [54.5, 25.25], [54.25, 25.35], [54.0, 25.25], [53.47, 25.47], [53.25, 26.0], [53.35, 26.25], [53.25, 26.5], [53.47, 27.03]]]]}, "2013-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 27.03], [54.0, 27.25], [54.3, 27.13], [54.47, 27.53], [55.0, 27.75], [55.25, 27.65], [55.5, 27.75], [56.0, 27.54], [56.5, 27.75], [57.03, 27.53], [57.18, 27.18], [57.53, 27.03], [57.75, 26.5], [57.65, 26.25], [57.75, 26.0], [57.65, 25.75], [57.75, 25.5], [57.65, 25.25], [57.75, 25.0], [57.53, 24.47], [57.0, 24.25], [56.75, 24.35], [56.5, 24.25], [55.97, 24.47], [55.75, 25.0], [55.85, 25.25], [55.8, 25.38], [55.5, 25.25], [55.25, 25.35], [55.0, 25.25], [54.75, 25.35], [54.5, 25.25], [54.25, 25.35], [54.0, 25.25], [53.47, 25.47], [53.25, 26.0], [53.35, 26.25], [53.25, 26.5], [53.47, 27.03]]]]}, "2013-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.5, 26.25], [57.03, 26.03], [57.25, 25.5], [57.03, 24.97], [56.5, 24.75], [55.97, 24.97], [55.75, 25.5], [55.97, 26.03], [56.5, 26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.9812133332092117}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.173025083172635}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.811082669644406, 23.573812467219796, 23.583616025376728, 23.17293955688666, 24.399401380130996]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.34295665134863, 19.63526705420844, 19.290555775256337, 18.501724089131756, 24.399401380130996]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3669556595133088, -2.235513065739242, -2.090391819470695, -2.338002624146617, -1.033350993556951]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6743812363594088, -3.9812133332092117, -2.8454136650222495, -2.9536473156547345, -1.033350993556951]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5593482295423997, -2.5226975808427823, -2.419256742565541, -2.582223575167428, -1.2218034500571489]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7628859587901857, -4.328386593370078, -3.176486006266411, -3.620666080441547, -1.2218034500571489]}}