{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:13.582464", "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": "2017-Jun-11_to_2017-Jun-15_40.5_16.5"}, "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": 2017060000355}, "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 11 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 15 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 103807.53322266531}, "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": ["Eritrea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Red Sea"]}, "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": 16.5}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, 16.5], [39.85, 16.75], [39.82, 16.82], [39.47, 16.97], 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15.68], [43.03, 15.53], [43.25, 15.0], [43.03, 14.47], [42.5, 14.25], [42.25, 14.35], [42.0, 14.25], [41.75, 14.35], [41.5, 14.25], [41.25, 14.35], [41.0, 14.25], [40.75, 14.35], [40.5, 14.25], [40.25, 14.35], [40.0, 14.25], [39.47, 14.47], [39.32, 14.82], [38.97, 14.97], [38.75, 15.5], [38.85, 15.75], [38.82, 15.82], [38.47, 15.97], [38.25, 16.5]]]]}, "2017-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 16.5], [38.47, 17.03], [38.82, 17.18], [38.85, 17.25], [38.75, 17.5], [38.85, 17.75], [38.75, 18.0], [38.85, 18.25], [38.75, 18.5], [38.97, 19.03], [39.5, 19.25], [39.75, 19.15], [40.0, 19.25], [40.53, 19.03], [40.75, 18.5], [40.65, 18.25], [40.68, 18.18], [41.03, 18.03], [41.18, 17.68], [41.53, 17.53], [41.68, 17.18], [42.03, 17.03], [42.18, 16.68], [42.53, 16.53], [42.75, 16.0], [42.65, 15.75], [42.68, 15.68], [43.03, 15.53], [43.25, 15.0], [43.03, 14.47], [42.5, 14.25], [42.25, 14.35], [42.0, 14.25], [41.75, 14.35], [41.5, 14.25], [41.25, 14.35], 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[38.82, 15.82], [38.47, 15.97], [38.25, 16.5]]]]}, "2017-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 17.53], [40.0, 17.75], [40.53, 17.53], [40.68, 17.18], [41.03, 17.03], [41.2, 16.63], [41.5, 16.75], [42.03, 16.53], [42.25, 16.0], [42.15, 15.75], [42.18, 15.68], [42.53, 15.53], [42.75, 15.0], [42.53, 14.47], [42.0, 14.25], [41.75, 14.35], [41.5, 14.25], [41.25, 14.35], [41.0, 14.25], [40.47, 14.47], [40.32, 14.82], [39.97, 14.97], [39.82, 15.32], [39.47, 15.47], [39.25, 16.0], [39.46, 16.5], [39.25, 17.0], [39.47, 17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.006135624975684}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1023986883226728}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.98533849013279, 29.909565421169532, 29.81940295623457, 29.862595301026147, 30.104063330862573]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.57392588066938, 29.18304661606578, 28.990883916549706, 29.186575620604287, 29.751048298937746]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9050868018344218, -1.1020210878742822, -1.2038210668596663, -1.1823119065001642, -0.8354168673255086]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1314911680989894, -1.544395800294751, -2.006135624975684, -1.6760837258478318, -0.9413618457322741]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.639118428828001, -1.8280618490569496, -1.9563746569886376, -1.904178691660882, -1.4734983474393752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9682696223606464, -2.5157311705762746, -2.487477921808285, -2.5824553876751493, -1.7241507764645259]}}