{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:48.775823", "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": "2020-May-14_to_2020-May-17_51.0_22.0"}, "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": 2020050000382}, "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 14 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2020"}, "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": 120318.35156069814}, "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": 22.0}, "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": 51.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "51.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 49.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 53.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "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": {"2020-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.75, 21.5], [48.97, 22.03], [49.32, 22.18], [49.35, 22.25], [49.25, 22.5], [49.35, 22.75], [49.25, 23.0], [49.47, 23.53], [49.82, 23.68], [49.85, 23.75], [49.75, 24.0], [49.97, 24.53], [50.5, 24.75], [50.75, 24.65], [51.0, 24.75], [51.53, 24.53], [51.68, 24.18], [51.75, 24.15], [51.82, 24.18], [51.97, 24.53], [52.5, 24.75], [53.03, 24.53], [53.25, 24.0], [53.15, 23.75], [53.25, 23.5], [53.03, 22.97], [52.68, 22.82], [52.65, 22.75], [52.75, 22.5], [52.65, 22.25], [52.75, 22.0], [52.65, 21.75], [52.68, 21.68], [53.0, 21.54], [53.5, 21.75], [54.03, 21.53], [54.25, 21.0], [54.15, 20.75], [54.25, 20.5], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.18, 19.82], [53.03, 19.47], [52.5, 19.25], [51.97, 19.47], [51.82, 19.82], [51.75, 19.85], [51.5, 19.75], [50.97, 19.97], [50.82, 20.32], [50.75, 20.35], [50.5, 20.25], [50.25, 20.35], [50.0, 20.25], [49.47, 20.47], [49.32, 20.82], [48.97, 20.97], [48.75, 21.5]]]]}, "2020-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.75, 21.5], [48.97, 22.03], [49.32, 22.18], [49.35, 22.25], [49.25, 22.5], [49.35, 22.75], [49.25, 23.0], [49.47, 23.53], [49.82, 23.68], [49.85, 23.75], [49.75, 24.0], [49.97, 24.53], [50.5, 24.75], [50.75, 24.65], [51.0, 24.75], [51.53, 24.53], [51.68, 24.18], [51.75, 24.15], [51.82, 24.18], [51.97, 24.53], [52.5, 24.75], [53.03, 24.53], [53.25, 24.0], [53.15, 23.75], [53.25, 23.5], [53.03, 22.97], [52.68, 22.82], [52.65, 22.75], [52.75, 22.5], [52.65, 22.25], [52.75, 22.0], [52.65, 21.75], [52.68, 21.68], [53.0, 21.54], [53.5, 21.75], [54.03, 21.53], [54.25, 21.0], [54.15, 20.75], [54.25, 20.5], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.18, 19.82], [53.03, 19.47], [52.5, 19.25], [51.97, 19.47], [51.82, 19.82], [51.75, 19.85], [51.5, 19.75], [50.97, 19.97], [50.82, 20.32], [50.75, 20.35], [50.5, 20.25], [50.25, 20.35], [50.0, 20.25], [49.47, 20.47], [49.32, 20.82], [48.97, 20.97], [48.75, 21.5]]]]}, "2020-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.75, 21.5], [48.97, 22.03], [49.32, 22.18], [49.35, 22.25], [49.25, 22.5], [49.35, 22.75], [49.25, 23.0], [49.47, 23.53], [49.82, 23.68], [49.85, 23.75], [49.75, 24.0], [49.97, 24.53], [50.5, 24.75], [50.75, 24.65], [51.0, 24.75], [51.53, 24.53], [51.68, 24.18], [51.75, 24.15], [51.82, 24.18], [51.97, 24.53], [52.5, 24.75], [53.03, 24.53], [53.25, 24.0], [53.15, 23.75], [53.25, 23.5], [53.03, 22.97], [52.68, 22.82], [52.65, 22.75], [52.75, 22.5], [52.65, 22.25], [52.75, 22.0], [52.65, 21.75], [52.68, 21.68], [53.0, 21.54], [53.5, 21.75], [54.03, 21.53], [54.25, 21.0], [54.15, 20.75], [54.25, 20.5], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.18, 19.82], [53.03, 19.47], [52.5, 19.25], [51.97, 19.47], [51.82, 19.82], [51.75, 19.85], [51.5, 19.75], [50.97, 19.97], [50.82, 20.32], [50.75, 20.35], [50.5, 20.25], [50.25, 20.35], [50.0, 20.25], [49.47, 20.47], [49.32, 20.82], [48.97, 20.97], [48.75, 21.5]]]]}, "2020-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.35, 21.75], [49.25, 22.0], [49.35, 22.25], [49.25, 22.5], [49.47, 23.03], [49.82, 23.18], [49.97, 23.53], [50.32, 23.68], [50.35, 23.75], [50.25, 24.0], [50.47, 24.53], [51.0, 24.75], [51.53, 24.53], [51.68, 24.18], [52.03, 24.03], [52.25, 23.5], [52.03, 22.97], [51.68, 22.82], [51.65, 22.75], [51.75, 22.5], [51.65, 22.25], [51.75, 22.0], [51.53, 21.47], [51.18, 21.32], [51.15, 21.25], [51.25, 21.0], [51.03, 20.47], [50.5, 20.25], [50.25, 20.35], [50.0, 20.25], [49.47, 20.47], [49.25, 21.0], [49.35, 21.25], [49.25, 21.5], [49.35, 21.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.6507812054233}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.3306733185131154}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.01386117785387, 30.684715193771922, 31.219180447809663, 31.71014672519584]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.4292951180999, 27.86602250835938, 29.22653407449326, 30.869934358192722]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2492003974905197, -3.686985976438959, -3.2394862701090443, -2.81644579071542]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.2259496472387355, -4.6507812054233, -4.052669189797712, -3.3674563471942065]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7778827905461911, -2.065062934384558, -1.822311069924356, -1.5891165983064441]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.110252427837419, -2.471987031345708, -2.252968094468268, -1.776733777872255]}}