{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:54.792976", "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": "2014-Mar-16_to_2014-Mar-19_56.5_20.5"}, "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": 2014030000712}, "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": "March 16 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 19 2014"}, "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": 63543.71941749276}, "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": ["Oman", "Saudi Arabia"]}, "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": 20.5}, "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": 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": 54.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 58.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.97, 21.97], [56.75, 22.5], [56.97, 23.03], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.53, 23.03], [58.75, 22.5], [58.53, 21.97], [58.0, 21.75], [57.75, 21.85], [57.5, 21.75], [56.97, 21.97]]]]}, "2014-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 21.03], [54.5, 21.25], [54.75, 21.15], [55.0, 21.25], [55.53, 21.03], [55.68, 20.68], [55.75, 20.65], [55.82, 20.68], [55.97, 21.03], [56.32, 21.18], [56.35, 21.25], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.47, 22.53], [56.82, 22.68], [56.97, 23.03], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.25, 23.15], [58.5, 23.25], [59.03, 23.03], [59.25, 22.5], [59.03, 21.97], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.03, 20.47], [57.68, 20.32], [57.53, 19.97], [57.18, 19.82], [57.03, 19.47], [56.68, 19.32], [56.53, 18.97], [56.18, 18.82], [56.03, 18.47], [55.5, 18.25], [54.97, 18.47], [54.75, 19.0], [54.85, 19.25], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.75, 20.0], [53.85, 20.25], [53.75, 20.5], [53.97, 21.03]]]]}, "2014-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 21.03], [54.5, 21.25], [54.75, 21.15], [55.0, 21.25], [55.53, 21.03], [55.68, 20.68], [55.75, 20.65], [55.82, 20.68], [55.97, 21.03], [56.32, 21.18], [56.35, 21.25], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.47, 22.53], [56.82, 22.68], [56.97, 23.03], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.25, 23.15], [58.5, 23.25], [59.03, 23.03], [59.25, 22.5], [59.03, 21.97], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.03, 20.47], [57.68, 20.32], [57.53, 19.97], [57.18, 19.82], [57.03, 19.47], [56.68, 19.32], [56.53, 18.97], [56.18, 18.82], [56.03, 18.47], [55.5, 18.25], [54.97, 18.47], [54.75, 19.0], [54.85, 19.25], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.75, 20.0], [53.85, 20.25], [53.75, 20.5], [53.97, 21.03]]]]}, "2014-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, 21.03], [54.5, 21.25], [54.75, 21.15], [55.0, 21.25], [55.53, 21.03], [55.68, 20.68], [55.75, 20.65], [55.82, 20.68], [55.97, 21.03], [56.32, 21.18], [56.35, 21.25], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.47, 22.53], [57.0, 22.75], [57.25, 22.65], [57.32, 22.68], [57.47, 23.03], [58.0, 23.25], [58.25, 23.15], [58.5, 23.25], [59.03, 23.03], [59.25, 22.5], [59.03, 21.97], [58.68, 21.82], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.03, 20.47], [57.68, 20.32], [57.53, 19.97], [57.18, 19.82], [57.03, 19.47], [56.68, 19.32], [56.53, 18.97], [56.18, 18.82], [56.03, 18.47], [55.5, 18.25], [54.97, 18.47], [54.75, 19.0], [54.85, 19.25], [54.82, 19.32], [54.75, 19.35], [54.5, 19.25], [53.97, 19.47], [53.75, 20.0], [53.85, 20.25], [53.75, 20.5], [53.97, 21.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.9042683524855875}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.4151950984042596}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.777967477899438, 22.182155317030322, 22.071497810852975, 23.242718640144915]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.624345290619033, 21.110937851099436, 21.012700702516156, 22.225693087964714]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7619409373238, -3.5009614101268407, -3.8599917491766034, -2.921581914941049]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.776990202418517, -4.795972554319121, -4.9042683524855875, -3.485922372109144]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3792493481599073, -1.7882049839675473, -2.02331081898415, -1.5570408071863235]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4111421872222414, -2.0845430759867702, -2.466249159186523, -1.9139110498710143]}}