{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:37.604409", "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-16_to_2014-Jun-20_43.0_13.5"}, "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": 2014060000657}, "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 16 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 20 2014"}, "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": 65605.64743398214}, "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", "N.Eastern-Africa", "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": 13.5}, "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": 43.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.97, 13.97], [40.75, 14.5], [40.97, 15.03], [41.5, 15.25], [41.75, 15.15], [42.0, 15.25], [42.53, 15.03], [42.68, 14.68], [43.03, 14.53], [43.18, 14.18], [43.53, 14.03], [43.75, 13.5], [43.65, 13.25], [43.75, 13.0], [43.53, 12.47], [43.0, 12.25], [42.75, 12.35], [42.5, 12.25], [41.97, 12.47], [41.75, 13.0], [41.85, 13.25], [41.75, 13.5], [41.85, 13.75], [41.82, 13.82], [41.75, 13.85], [41.5, 13.75], [40.97, 13.97]]]]}, "2014-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.35, 16.75], [40.25, 17.0], [40.35, 17.25], [40.25, 17.5], [40.47, 18.03], [41.0, 18.25], [41.53, 18.03], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.53, 17.03], [42.75, 16.5], [42.65, 16.25], [42.75, 16.0], [42.65, 15.75], [42.75, 15.5], [42.65, 15.25], [42.68, 15.18], [43.03, 15.03], [43.18, 14.68], [43.53, 14.53], [43.75, 14.0], [43.65, 13.75], [43.75, 13.5], [43.65, 13.25], [43.75, 13.0], [43.53, 12.47], [43.0, 12.25], [42.75, 12.35], [42.5, 12.25], [41.97, 12.47], [41.75, 13.0], [41.85, 13.25], [41.75, 13.5], [41.85, 13.75], [41.82, 13.82], [41.75, 13.85], [41.5, 13.75], [40.97, 13.97], [40.75, 14.5], [40.85, 14.75], [40.75, 15.0], [40.85, 15.25], [40.82, 15.32], [40.47, 15.47], [40.25, 16.0], [40.35, 16.25], [40.25, 16.5], [40.35, 16.75]]]]}, "2014-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.35, 16.75], [40.25, 17.0], [40.35, 17.25], [40.25, 17.5], [40.47, 18.03], [41.0, 18.25], [41.53, 18.03], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.53, 17.03], [42.75, 16.5], [42.65, 16.25], [42.75, 16.0], [42.65, 15.75], [42.75, 15.5], [42.65, 15.25], [42.68, 15.18], [43.03, 15.03], [43.18, 14.68], [43.53, 14.53], [43.75, 14.0], [43.65, 13.75], [43.75, 13.5], [43.65, 13.25], [43.75, 13.0], [43.53, 12.47], [43.0, 12.25], [42.75, 12.35], [42.5, 12.25], [41.97, 12.47], [41.75, 13.0], [41.85, 13.25], [41.75, 13.5], [41.85, 13.75], [41.82, 13.82], [41.75, 13.85], [41.5, 13.75], [40.97, 13.97], [40.75, 14.5], [40.85, 14.75], [40.75, 15.0], [40.85, 15.25], [40.82, 15.32], [40.47, 15.47], [40.25, 16.0], [40.35, 16.25], [40.25, 16.5], [40.35, 16.75]]]]}, "2014-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.35, 16.75], [40.25, 17.0], [40.35, 17.25], [40.25, 17.5], [40.47, 18.03], [41.0, 18.25], [41.53, 18.03], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.53, 17.03], [42.75, 16.5], [42.65, 16.25], [42.75, 16.0], [42.65, 15.75], [42.75, 15.5], [42.65, 15.25], [42.68, 15.18], [43.03, 15.03], [43.18, 14.68], [43.53, 14.53], [43.75, 14.0], [43.65, 13.75], [43.75, 13.5], [43.53, 12.97], [43.0, 12.75], [42.75, 12.85], [42.5, 12.75], [41.97, 12.97], [41.75, 13.5], [41.85, 13.75], [41.82, 13.82], [41.47, 13.97], [41.32, 14.32], [40.97, 14.47], [40.75, 15.0], [40.85, 15.25], [40.82, 15.32], [40.47, 15.47], [40.25, 16.0], [40.35, 16.25], [40.25, 16.5], [40.35, 16.75]]]]}, "2014-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.0, 14.75], [43.53, 14.53], [43.75, 14.0], [43.65, 13.75], [43.75, 13.5], [43.53, 12.97], [43.0, 12.75], [42.47, 12.97], [42.25, 13.5], [42.35, 13.75], [42.25, 14.0], [42.47, 14.53], [43.0, 14.75]]], [[[41.5, 16.75], [42.03, 16.53], [42.25, 16.0], [42.15, 15.75], [42.25, 15.5], [42.03, 14.97], [41.5, 14.75], [40.97, 14.97], [40.75, 15.5], [40.85, 15.75], [40.75, 16.0], [40.97, 16.53], [41.5, 16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.9318223395254677}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.186354190804756}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.530833796508148, 29.678477933650868, 29.896299450840672, 30.12493205695239, 30.296975983755033]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.182301516127325, 29.153114957542982, 29.540156099057242, 29.75433624493286, 30.26051558636601]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8126697946433004, -1.4371554335032473, -1.280063222488575, -0.9977362120489338, -0.8414307740747518]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1675694786933377, -1.9318223395254677, -1.4911109846293016, -1.2901014445828878, -0.9464034904838172]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4621466302484654, -2.402568480207718, -2.0860163336110342, -1.5839816683065853, -1.370335110914069]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7253275046955676, -2.798788861702406, -2.5664014514770024, -1.9326018373853824, -1.4588460107202674]}}