{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:22.754598", "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-May-24_to_2013-May-27_53.5_23.0"}, "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": 2013050000987}, "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": "May 24 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 27 2013"}, "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": 54162.96640282695}, "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", "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": 23.0}, "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": 53.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 51.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 54.25}, "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": {"2013-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.85, 22.75], [51.75, 23.0], [51.85, 23.25], [51.75, 23.5], [51.97, 24.03], [52.5, 24.25], [52.75, 24.15], [52.82, 24.18], [52.97, 24.53], [53.5, 24.75], [54.03, 24.53], [54.18, 24.18], [54.53, 24.03], [54.75, 23.5], [54.65, 23.25], [54.75, 23.0], [54.65, 22.75], [54.75, 22.5], [54.65, 22.25], [54.75, 22.0], [54.65, 21.75], [54.75, 21.5], [54.53, 20.97], [54.0, 20.75], [53.47, 20.97], [53.32, 21.32], [53.25, 21.35], [53.0, 21.25], [52.75, 21.35], [52.5, 21.25], [51.97, 21.47], [51.75, 22.0], [51.85, 22.25], [51.75, 22.5], [51.85, 22.75]]]]}, "2013-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.25, 22.5], [51.47, 23.03], [51.82, 23.18], [51.85, 23.25], [51.75, 23.5], [51.97, 24.03], [52.5, 24.25], [52.75, 24.15], [52.82, 24.18], [52.97, 24.53], [53.5, 24.75], [54.03, 24.53], [54.18, 24.18], [54.53, 24.03], [54.75, 23.5], [54.65, 23.25], [54.75, 23.0], [54.65, 22.75], [54.75, 22.5], [54.65, 22.25], [54.75, 22.0], [54.65, 21.75], [54.75, 21.5], [54.53, 20.97], [54.0, 20.75], [53.47, 20.97], [53.32, 21.32], [53.25, 21.35], [53.0, 21.25], [52.75, 21.35], [52.5, 21.25], [51.97, 21.47], [51.82, 21.82], [51.47, 21.97], [51.25, 22.5]]]]}, "2013-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.25, 22.5], [51.47, 23.03], [51.82, 23.18], [51.85, 23.25], [51.75, 23.5], [51.97, 24.03], [52.5, 24.25], [52.75, 24.15], [52.82, 24.18], [52.97, 24.53], [53.5, 24.75], [54.03, 24.53], [54.18, 24.18], [54.53, 24.03], [54.75, 23.5], [54.65, 23.25], [54.75, 23.0], [54.65, 22.75], [54.75, 22.5], [54.65, 22.25], [54.75, 22.0], [54.65, 21.75], [54.75, 21.5], [54.53, 20.97], [54.0, 20.75], [53.47, 20.97], [53.32, 21.32], [53.25, 21.35], [53.0, 21.25], [52.75, 21.35], [52.5, 21.25], [51.97, 21.47], [51.82, 21.82], [51.47, 21.97], [51.25, 22.5]]]]}, "2013-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.0, 23.25], [52.53, 23.03], [52.75, 22.5], [52.53, 21.97], [52.0, 21.75], [51.47, 21.97], [51.25, 22.5], [51.47, 23.03], [52.0, 23.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.6624216605870856}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.892779873019574}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.571992359891, 31.584401750453026, 31.33128246878897, 32.77860339989974]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.10209108341337, 29.93789274024681, 29.767824504619227, 32.77860339989974]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7658666997963746, -2.7991248821263013, -3.135169497673536, -2.3512589495840643]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.244064607814721, -3.2524772369438892, -3.6624216605870856, -2.3512589495840643]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5362601640735933, -1.5474380392954643, -1.6783186182266294, -1.268235903150787]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7590770860813585, -1.7257032424384593, -1.940396862073301, -1.268235903150787]}}