{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:49.086566", "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": "2016-Jul-24_to_2016-Jul-31_60.0_23.5"}, "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": 2016070000832}, "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": "July 24 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 444600.102626501}, "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", "Oman", "Saudi Arabia", "United Arab Emirates"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "S.Asia", "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": 23.5}, "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": 60.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 61.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.5, 24.75], [59.75, 24.65], [60.0, 24.75], [60.53, 24.53], [60.75, 24.0], [60.65, 23.75], [60.75, 23.5], [60.65, 23.25], [60.75, 23.0], [60.53, 22.47], [60.0, 22.25], [59.47, 22.47], [59.25, 23.0], [59.35, 23.25], [59.32, 23.32], [58.97, 23.47], [58.75, 24.0], [58.97, 24.53], [59.5, 24.75]]], [[[55.75, 26.0], [55.97, 26.53], [56.5, 26.75], [57.03, 26.53], [57.25, 26.0], [57.03, 25.47], [56.5, 25.25], [55.97, 25.47], [55.75, 26.0]]], [[[57.97, 27.03], [58.5, 27.25], [58.75, 27.15], [59.0, 27.25], [59.53, 27.03], [59.75, 26.5], [59.53, 25.97], [59.0, 25.75], [58.75, 25.85], [58.5, 25.75], [57.97, 25.97], [57.75, 26.5], [57.97, 27.03]]], [[[54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.53, 28.03], [56.75, 27.5], [56.53, 26.97], [56.0, 26.75], [55.75, 26.85], [55.5, 26.75], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03]]]]}, "2016-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.25, 21.5], [55.47, 22.03], [55.82, 22.18], [55.97, 22.53], [56.5, 22.75], [56.75, 22.65], [57.0, 22.75], [56.47, 22.97], [56.32, 23.32], [55.97, 23.47], [55.75, 24.0], [55.85, 24.25], [55.82, 24.32], [55.47, 24.47], [55.25, 25.0], [55.47, 25.53], [55.88, 25.7], [55.75, 26.0], [55.97, 26.53], [56.5, 26.75], [57.03, 26.53], [57.18, 26.18], [57.25, 26.15], [57.5, 26.25], [57.75, 26.15], [57.82, 26.18], [57.85, 26.25], [57.75, 26.5], [57.97, 27.03], [58.5, 27.25], [58.75, 27.15], [59.0, 27.25], [59.53, 27.03], [59.75, 26.5], [59.63, 26.2], [60.03, 26.03], [60.25, 25.5], [60.04, 25.0], [60.18, 24.68], [60.53, 24.53], [60.75, 24.0], [60.65, 23.75], [60.75, 23.5], [60.65, 23.25], [60.75, 23.0], [60.53, 22.47], [60.18, 22.32], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [59.25, 21.35], [59.18, 21.32], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.18, 19.82], [58.03, 19.47], [57.5, 19.25], [57.25, 19.35], [57.18, 19.32], [57.03, 18.97], [56.5, 18.75], [55.97, 18.97], [55.75, 19.5], [55.85, 19.75], [55.82, 19.82], [55.47, 19.97], [55.25, 20.5], [55.35, 20.75], [55.25, 21.0], [55.35, 21.25], [55.25, 21.5]], [[57.25, 22.65], [57.32, 22.68], [57.38, 22.8], [57.25, 22.85], [57.0, 22.75], [57.25, 22.65]]], [[[55.75, 26.85], [55.5, 26.75], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.25, 28.15], [56.5, 28.25], [56.75, 28.15], [56.82, 28.18], [56.97, 28.53], [57.5, 28.75], [58.03, 28.53], [58.25, 28.0], [58.03, 27.47], [57.68, 27.32], [57.53, 26.97], [57.0, 26.75], [56.75, 26.85], [56.5, 26.75], [56.25, 26.85], [56.0, 26.75], [55.75, 26.85]]]]}, "2016-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 22.53], [54.5, 22.75], [54.75, 22.65], [54.82, 22.68], [54.97, 23.03], [55.5, 23.25], [55.75, 23.15], [56.0, 23.25], [56.25, 23.15], [56.38, 23.2], [56.32, 23.32], [55.97, 23.47], [55.82, 23.82], [55.47, 23.97], [55.25, 24.5], [55.35, 24.75], [55.25, 25.0], [55.35, 25.25], [55.25, 25.5], [55.47, 26.03], [55.82, 26.18], [55.88, 26.3], [55.47, 26.47], [55.32, 26.82], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.25, 28.15], [56.32, 28.18], [56.47, 28.53], [57.0, 28.75], [57.25, 28.65], [57.5, 28.75], [58.03, 28.53], [58.18, 28.18], [58.53, 28.03], [58.7, 27.63], [59.0, 27.75], [59.53, 27.53], [59.68, 27.18], [59.75, 27.15], [60.0, 27.25], [60.25, 27.15], [60.5, 27.25], [61.03, 27.03], [61.25, 26.5], [61.03, 25.97], [60.68, 25.82], [60.53, 25.47], [60.18, 25.32], [60.04, 25.0], [60.18, 24.68], [60.53, 24.53], [60.75, 24.0], [60.65, 23.75], [60.75, 23.5], [60.65, 23.25], [60.75, 23.0], [60.53, 22.47], [60.18, 22.32], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [59.25, 21.35], [59.18, 21.32], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.18, 19.82], [58.03, 19.47], [57.5, 19.25], [57.25, 19.35], [57.18, 19.32], [57.03, 18.97], [56.5, 18.75], [56.0, 18.96], [55.5, 18.75], [54.97, 18.97], [54.75, 19.5], [54.85, 19.75], [54.82, 19.82], [54.47, 19.97], [54.25, 20.5], [54.35, 20.75], [54.32, 20.82], [53.97, 20.97], [53.75, 21.5], [53.85, 21.75], [53.75, 22.0], [53.97, 22.53]], [[57.25, 26.85], [57.0, 26.75], [57.3, 26.63], [57.38, 26.8], [57.25, 26.85]], [[56.75, 26.85], [56.68, 26.82], [56.63, 26.7], [56.75, 26.65], [57.0, 26.75], [56.75, 26.85]]]]}, "2016-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.47, 23.03], [54.0, 23.25], [54.25, 23.15], [54.32, 23.18], [54.47, 23.53], [54.82, 23.68], [54.97, 24.03], [55.38, 24.2], [55.25, 24.5], [55.35, 24.75], [55.25, 25.0], [55.35, 25.25], [55.25, 25.5], [55.35, 25.75], [55.25, 26.0], [55.46, 26.5], [55.32, 26.82], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.25, 28.15], [56.32, 28.18], [56.47, 28.53], [57.0, 28.75], [57.25, 28.65], [57.5, 28.75], [57.75, 28.65], [58.0, 28.75], [58.25, 28.65], [58.5, 28.75], [59.03, 28.53], [59.25, 28.0], [59.15, 27.75], [59.18, 27.68], [59.53, 27.53], [59.68, 27.18], [59.75, 27.15], [60.0, 27.25], [60.25, 27.15], [60.5, 27.25], [61.03, 27.03], [61.18, 26.68], [61.53, 26.53], [61.75, 26.0], [61.53, 25.47], [61.0, 25.25], [60.75, 25.35], [60.5, 25.25], [60.25, 25.35], [60.18, 25.32], [60.15, 25.25], [60.25, 25.0], [60.15, 24.75], [60.18, 24.68], [60.53, 24.53], [60.75, 24.0], [60.65, 23.75], [60.75, 23.5], [60.65, 23.25], [60.75, 23.0], [60.53, 22.47], [60.18, 22.32], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [59.25, 21.35], [59.18, 21.32], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.18, 19.82], [58.03, 19.47], [57.68, 19.32], [57.53, 18.97], [57.0, 18.75], [56.75, 18.85], [56.63, 18.8], [56.75, 18.5], [56.53, 17.97], [56.0, 17.75], [55.47, 17.97], [55.25, 18.5], [55.38, 18.8], [54.97, 18.97], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.82, 19.82], [53.47, 19.97], [53.32, 20.32], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5], [52.85, 21.75]]]]}, "2016-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.47, 23.03], [54.0, 23.25], [54.25, 23.15], [54.32, 23.18], [54.47, 23.53], [54.82, 23.68], [54.97, 24.03], [55.38, 24.2], [55.25, 24.5], [55.35, 24.75], [55.25, 25.0], [55.35, 25.25], [55.25, 25.5], [55.35, 25.75], [55.25, 26.0], [55.46, 26.5], [55.32, 26.82], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.25, 28.15], [56.32, 28.18], [56.47, 28.53], [57.0, 28.75], [57.25, 28.65], [57.5, 28.75], [57.75, 28.65], [58.0, 28.75], [58.25, 28.65], [58.5, 28.75], [59.03, 28.53], [59.25, 28.0], [59.15, 27.75], [59.18, 27.68], [59.53, 27.53], [59.68, 27.18], [59.75, 27.15], [60.0, 27.25], [60.25, 27.15], [60.5, 27.25], [61.03, 27.03], [61.18, 26.68], [61.53, 26.53], [61.75, 26.0], [61.53, 25.47], [61.0, 25.25], [60.75, 25.35], [60.5, 25.25], [60.25, 25.35], [60.18, 25.32], [60.15, 25.25], [60.25, 25.0], [60.15, 24.75], [60.18, 24.68], [60.25, 24.65], [60.5, 24.75], [61.03, 24.53], [61.25, 24.0], [61.15, 23.75], [61.25, 23.5], [61.03, 22.97], [60.68, 22.82], [60.53, 22.47], [60.18, 22.32], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [59.25, 21.35], [59.18, 21.32], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.18, 19.82], [58.03, 19.47], [57.68, 19.32], [57.53, 18.97], [57.18, 18.82], [57.03, 18.47], [56.68, 18.32], [56.53, 17.97], [56.0, 17.75], [55.47, 17.97], [55.25, 18.5], [55.38, 18.8], [54.97, 18.97], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.82, 19.82], [53.47, 19.97], [53.32, 20.32], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5], [52.85, 21.75]]]]}, "2016-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.47, 23.03], [54.0, 23.25], [54.25, 23.15], [54.32, 23.18], [54.47, 23.53], [54.82, 23.68], [54.97, 24.03], [55.38, 24.2], [55.25, 24.5], [55.35, 24.75], [55.25, 25.0], [55.35, 25.25], [55.25, 25.5], [55.35, 25.75], [55.25, 26.0], [55.47, 26.53], [55.82, 26.68], [55.85, 26.75], [55.82, 26.82], [55.75, 26.85], [55.5, 26.75], [54.97, 26.97], [54.75, 27.5], [54.97, 28.03], [55.5, 28.25], [55.75, 28.15], [56.0, 28.25], [56.25, 28.15], [56.38, 28.2], [56.25, 28.5], [56.47, 29.03], [57.0, 29.25], [57.53, 29.03], [57.68, 28.68], [57.75, 28.65], [58.0, 28.75], [58.25, 28.65], [58.5, 28.75], [59.03, 28.53], [59.25, 28.0], [59.15, 27.75], [59.25, 27.5], [59.13, 27.2], [59.25, 27.15], [59.5, 27.25], [60.03, 27.03], [60.18, 26.68], [60.25, 26.65], [60.5, 26.75], [60.75, 26.65], [61.0, 26.75], [61.53, 26.53], [61.75, 26.0], [61.53, 25.47], [61.0, 25.25], [60.75, 25.35], [60.5, 25.25], [60.25, 25.35], [60.18, 25.32], [60.15, 25.25], [60.25, 25.0], [60.13, 24.7], [60.25, 24.65], [60.5, 24.75], [61.03, 24.53], [61.25, 24.0], [61.15, 23.75], [61.25, 23.5], [61.03, 22.97], [60.5, 22.75], [60.25, 22.85], [60.13, 22.8], [60.25, 22.5], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [59.25, 21.35], [59.18, 21.32], [59.03, 20.97], [58.5, 20.75], [58.2, 20.88], [58.04, 20.5], [58.25, 20.0], [58.03, 19.47], [57.68, 19.32], [57.53, 18.97], [57.18, 18.82], [57.03, 18.47], [56.68, 18.32], [56.53, 17.97], [56.0, 17.75], [55.47, 17.97], [55.25, 18.5], [55.38, 18.8], [54.97, 18.97], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.82, 19.82], [53.47, 19.97], [53.32, 20.32], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5], [52.85, 21.75]]]]}, "2016-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.03, 19.53], [57.25, 19.0], [57.03, 18.47], [56.68, 18.32], [56.53, 17.97], [56.0, 17.75], [55.47, 17.97], [55.25, 18.5], [55.47, 19.03], [55.82, 19.18], [55.97, 19.53], [56.5, 19.75], [57.03, 19.53]]], [[[58.25, 25.65], [58.5, 25.75], [59.03, 25.53], [59.25, 25.0], [59.15, 24.75], [59.18, 24.68], [59.53, 24.53], [59.7, 24.13], [59.82, 24.18], [59.97, 24.53], [60.5, 24.75], [61.03, 24.53], [61.25, 24.0], [61.15, 23.75], [61.25, 23.5], [61.03, 22.97], [60.5, 22.75], [60.25, 22.85], [60.0, 22.75], [59.47, 22.97], [59.3, 23.38], [59.0, 23.25], [58.75, 23.35], [58.5, 23.25], [57.97, 23.47], [57.82, 23.82], [57.47, 23.97], [57.25, 24.5], [57.35, 24.75], [57.25, 25.0], [57.47, 25.53], [58.0, 25.75], [58.25, 25.65]]], [[[56.25, 28.5], [56.47, 29.03], [57.0, 29.25], [57.53, 29.03], [57.75, 28.5], [57.53, 27.97], [57.0, 27.75], [56.47, 27.97], [56.25, 28.5]]]]}, "2016-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, 17.97], [55.25, 18.5], [55.47, 19.03], [56.0, 19.25], [56.53, 19.03], [56.75, 18.5], [56.53, 17.97], [56.0, 17.75], [55.47, 17.97]]], [[[56.47, 27.97], [56.25, 28.5], [56.47, 29.03], [57.0, 29.25], [57.53, 29.03], [57.75, 28.5], [57.53, 27.97], [57.0, 27.75], [56.47, 27.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.035523686868544}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.217217129043008}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.74588033791906, 29.765142340896887, 30.468224523760455, 30.411537987498036, 30.36439800933016, 31.39506717646026, 27.935322882872185, 25.44946920821792]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.091100007741545, 25.635044524564705, 26.069087639097745, 26.14472859698583, 25.91015663769241, 24.550489172193863, 23.463129155092645, 24.39708251040969]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.075490831670114, -2.881034652196197, -3.0632887788957706, -3.611433206099226, -3.663757512773737, -2.778427653898332, -1.8668447905998278, -2.3108950025859087]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.78686927453748, -5.507785290563788, -5.951232170943854, -7.035523686868544, -6.274890317829886, -4.32874209448471, -3.187004759288925, -2.3280777671297983]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4487000730203254, -1.6438114970764506, -1.7042323812081837, -2.0471652748631044, -2.113806076153122, -1.630260866636254, -1.4071354745216145, -1.5446078139358994]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.804698443341858, -2.2469045599168926, -2.551314974928155, -3.1138171288467773, -3.211637921332261, -2.4361213376028465, -2.3311783084348496, -1.6956817132016788]}}