{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:52.111437", "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": "2013-Jul-19_to_2013-Jul-23_26.5_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": 2013070001062}, "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 19 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 23 2013"}, "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": 50546.79656293927}, "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": ["Egypt"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 26.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "26.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 27.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.85, 25.75], [24.75, 26.0], [24.97, 26.53], [25.5, 26.75], [26.03, 26.53], [26.18, 26.18], [26.53, 26.03], [26.75, 25.5], [26.53, 24.97], [26.18, 24.82], [26.03, 24.47], [25.5, 24.25], [24.97, 24.47], [24.75, 25.0], [24.85, 25.25], [24.75, 25.5], [24.85, 25.75]]]]}, "2013-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 26.03], [24.82, 26.18], [24.97, 26.53], [25.5, 26.75], [26.03, 26.53], [26.18, 26.18], [26.25, 26.15], [26.5, 26.25], [27.03, 26.03], [27.18, 25.68], [27.53, 25.53], [27.75, 25.0], [27.65, 24.75], [27.75, 24.5], [27.53, 23.97], [27.18, 23.82], [27.15, 23.75], [27.25, 23.5], [27.03, 22.97], [26.5, 22.75], [25.97, 22.97], [25.82, 23.32], [25.47, 23.47], [25.32, 23.82], [25.25, 23.85], [25.0, 23.75], [24.47, 23.97], [24.25, 24.5], [24.46, 25.0], [24.25, 25.5], [24.47, 26.03]]]]}, "2013-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 26.03], [24.82, 26.18], [24.97, 26.53], [25.5, 26.75], [26.03, 26.53], [26.18, 26.18], [26.25, 26.15], [26.5, 26.25], [27.03, 26.03], [27.18, 25.68], [27.53, 25.53], [27.75, 25.0], [27.65, 24.75], [27.75, 24.5], [27.54, 24.0], [27.75, 23.5], [27.53, 22.97], [27.0, 22.75], [26.75, 22.85], [26.5, 22.75], [26.25, 22.85], [26.0, 22.75], [25.47, 22.97], [25.25, 23.5], [25.35, 23.75], [25.32, 23.82], [25.25, 23.85], [25.0, 23.75], [24.47, 23.97], [24.25, 24.5], [24.46, 25.0], [24.25, 25.5], [24.47, 26.03]]]]}, "2013-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 26.03], [25.0, 26.25], [25.25, 26.15], [25.5, 26.25], [26.0, 26.04], [26.5, 26.25], [27.03, 26.03], [27.18, 25.68], [27.53, 25.53], [27.75, 25.0], [27.65, 24.75], [27.75, 24.5], [27.54, 24.0], [27.75, 23.5], [27.53, 22.97], [27.0, 22.75], [26.75, 22.85], [26.5, 22.75], [26.25, 22.85], [26.0, 22.75], [25.47, 22.97], [25.25, 23.5], [25.35, 23.75], [25.32, 23.82], [25.25, 23.85], [25.0, 23.75], [24.47, 23.97], [24.25, 24.5], [24.46, 25.0], [24.25, 25.5], [24.47, 26.03]]]]}, "2013-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, 22.97], [25.25, 23.5], [25.47, 24.03], [26.0, 24.25], [26.25, 24.15], [26.5, 24.25], [26.75, 24.15], [27.0, 24.25], [27.53, 24.03], [27.75, 23.5], [27.53, 22.97], [27.0, 22.75], [26.75, 22.85], [26.5, 22.75], [26.25, 22.85], [26.0, 22.75], [25.47, 22.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.8092426832936326}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.291065933470083}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.546457976774036, 27.090584874645003, 26.799182059327336, 26.848542150649905, 26.872166995228213]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.084503768293246, 25.572989430245002, 25.029750925301357, 24.995583397637574, 25.685314128068285]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.217031706561798, -2.2128133971697608, -2.419164752963351, -2.2846096297102783, -2.072965799375538]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2941015591374594, -2.492025791152514, -2.8092426832936326, -2.7822321891107435, -2.0893717377585403]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.257118363777093, -1.2845157617537162, -1.5370796183915072, -1.4642335447990564, -1.364411082764726]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2875359551370291, -1.3923139805532174, -1.768847236327481, -1.822321666231059, -1.3759148838201651]}}