{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:39.373727", "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-Jun-27_to_2014-Jul-04_59.0_22.5"}, "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": 2014060001050}, "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": "June 27 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2014"}, "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": 60191.139568244726}, "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"]}, "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": 22.5}, "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": 59.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.0, 22.25], [59.53, 22.03], [59.75, 21.5], [59.53, 20.97], [59.0, 20.75], [58.47, 20.97], [58.25, 21.5], [58.47, 22.03], [59.0, 22.25]]]]}, "2014-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.85, 22.75], [56.75, 23.0], [56.97, 23.53], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.68, 22.68], [60.03, 22.53], [60.25, 22.0], [60.03, 21.47], [59.68, 21.32], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.5, 20.75], [58.25, 20.85], [58.0, 20.75], [57.47, 20.97], [57.32, 21.32], [56.97, 21.47], [56.75, 22.0], [56.85, 22.25], [56.75, 22.5], [56.85, 22.75]]]]}, "2014-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.85, 22.75], [56.75, 23.0], [56.97, 23.53], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.68, 22.68], [60.03, 22.53], [60.25, 22.0], [60.03, 21.47], [59.68, 21.32], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.5, 20.75], [58.25, 20.85], [58.0, 20.75], [57.47, 20.97], [57.32, 21.32], [56.97, 21.47], [56.75, 22.0], [56.85, 22.25], [56.75, 22.5], [56.85, 22.75]]]]}, "2014-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.85, 22.75], [56.75, 23.0], [56.97, 23.53], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.68, 22.68], [60.03, 22.53], [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], [58.25, 20.85], [58.0, 20.75], [57.47, 20.97], [57.32, 21.32], [56.97, 21.47], [56.75, 22.0], [56.85, 22.25], [56.75, 22.5], [56.85, 22.75]]]]}, "2014-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.85, 21.75], [56.75, 22.0], [56.85, 22.25], [56.75, 22.5], [56.97, 23.03], [57.32, 23.18], [57.47, 23.53], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.65, 22.25], [59.75, 22.0], [59.65, 21.75], [59.75, 21.5], [59.53, 20.97], [59.18, 20.82], [59.03, 20.47], [58.68, 20.32], [58.53, 19.97], [58.0, 19.75], [57.47, 19.97], [57.32, 20.32], [56.97, 20.47], [56.75, 21.0], [56.85, 21.25], [56.75, 21.5], [56.85, 21.75]]]]}, "2014-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 23.0], [56.47, 23.53], [57.0, 23.75], [57.5, 23.54], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.65, 22.25], [59.75, 22.0], [59.65, 21.75], [59.75, 21.5], [59.53, 20.97], [59.18, 20.82], [59.03, 20.47], [58.68, 20.32], [58.53, 19.97], [58.0, 19.75], [57.47, 19.97], [57.32, 20.32], [56.97, 20.47], [56.75, 21.0], [56.85, 21.25], [56.75, 21.5], [56.85, 21.75], [56.75, 22.0], [56.85, 22.25], [56.82, 22.32], [56.47, 22.47], [56.25, 23.0]]]]}, "2014-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 23.0], [56.47, 23.53], [57.0, 23.75], [57.5, 23.54], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.65, 22.25], [59.75, 22.0], [59.65, 21.75], [59.75, 21.5], [59.53, 20.97], [59.18, 20.82], [59.03, 20.47], [58.68, 20.32], [58.53, 19.97], [58.0, 19.75], [57.47, 19.97], [57.32, 20.32], [56.97, 20.47], [56.75, 21.0], [56.85, 21.25], [56.75, 21.5], [56.85, 21.75], [56.75, 22.0], [56.85, 22.25], [56.82, 22.32], [56.47, 22.47], [56.25, 23.0]]]]}, "2014-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.0, 23.75], [57.53, 23.53], [57.75, 23.0], [57.53, 22.47], [57.0, 22.25], [56.47, 22.47], [56.25, 23.0], [56.47, 23.53], [57.0, 23.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.154853021505062}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.480949745904976}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.053806789573343, 30.72694532590748, 31.214527099528425, 31.8912055898806, 31.175163074856357, 30.828867596170255, 30.951853650056478, 32.10448406711299]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.053806789573343, 28.128668645639834, 28.738185364721573, 29.101604276941373, 28.630697911773268, 28.384831010206142, 28.388828846003946, 32.10448406711299]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4052781893223028, -3.9194657981745538, -3.4188092646262667, -2.931453024710785, -3.429225920895391, -3.7188736008414303, -3.497882996971031, -2.6926856704681654]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4052781893223028, -5.154853021505062, -4.2170326215432965, -3.4700224064498, -4.20041477898701, -4.712529061400346, -4.211348858395468, -2.6926856704681654]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2894251198923279, -2.006196816214813, -1.7838890451109342, -1.5419591289113017, -1.6575870847385408, -1.8357278853013, -1.711997695278421, -1.5337616558148446]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2894251198923279, -2.419153367023826, -2.232636826050859, -1.928069608319219, -1.9318522564390768, -2.200489351481379, -2.465755835367891, -1.5337616558148446]}}