{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:15.030682", "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": "2015-Jun-29_to_2015-Jul-03_32.5_28.5"}, "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": 2015060001135}, "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 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 03 2015"}, "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": 92145.88281046896}, "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": ["Arabian-Peninsula", "Mediterranean", "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": ["Gulf of Suez"]}, "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": 28.5}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.5, 31.75], [33.03, 31.53], [33.25, 31.0], [33.03, 30.47], [32.5, 30.25], [31.97, 30.47], [31.75, 31.0], [31.97, 31.53], [32.5, 31.75]]]]}, "2015-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.35, 30.25], [31.25, 30.5], [31.47, 31.03], [31.82, 31.18], [31.97, 31.53], [32.5, 31.75], [33.03, 31.53], [33.18, 31.18], [33.25, 31.15], [33.5, 31.25], [34.03, 31.03], [34.25, 30.5], [34.13, 30.2], [34.53, 30.03], [34.75, 29.5], [34.53, 28.97], [34.0, 28.75], [33.75, 28.85], [33.5, 28.75], [33.07, 28.93], [33.25, 28.5], [33.15, 28.25], [33.18, 28.18], [33.53, 28.03], [33.75, 27.5], [33.53, 26.97], [33.0, 26.75], [32.47, 26.97], [32.32, 27.32], [31.97, 27.47], [31.75, 28.0], [31.85, 28.25], [31.75, 28.5], [31.88, 28.8], [31.47, 28.97], [31.25, 29.5], [31.35, 29.75], [31.25, 30.0], [31.35, 30.25]], [[32.82, 29.32], [32.75, 29.35], [32.68, 29.32], [32.63, 29.2], [32.93, 29.07], [32.82, 29.32]]]]}, "2015-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 29.03], [30.32, 29.18], [30.47, 29.53], [31.0, 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27.85]]]]}, "2015-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 29.03], [30.32, 29.18], [30.47, 29.53], [31.0, 29.75], [31.25, 29.65], [31.32, 29.68], [31.35, 29.75], [31.25, 30.0], [31.35, 30.25], [31.25, 30.5], [31.47, 31.03], [32.0, 31.25], [32.25, 31.15], [32.5, 31.25], [32.75, 31.15], [33.0, 31.25], [33.25, 31.15], [33.5, 31.25], [34.03, 31.03], [34.25, 30.5], [34.13, 30.2], [34.53, 30.03], [34.75, 29.5], [34.53, 28.97], [34.0, 28.75], [33.75, 28.85], [33.63, 28.8], [33.68, 28.68], [34.03, 28.53], [34.25, 28.0], [34.15, 27.75], [34.25, 27.5], [34.15, 27.25], [34.25, 27.0], [34.03, 26.47], [33.5, 26.25], [32.97, 26.47], [32.82, 26.82], [32.57, 26.93], [32.75, 26.5], [32.53, 25.97], [32.0, 25.75], [31.75, 25.85], [31.5, 25.75], [30.97, 25.97], [30.82, 26.32], [30.47, 26.47], [30.25, 27.0], [30.35, 27.25], [30.32, 27.32], [29.97, 27.47], [29.75, 28.0], [29.85, 28.25], [29.75, 28.5], [29.97, 29.03]], [[32.18, 27.18], [32.43, 27.07], [32.32, 27.32], 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27.0], [30.35, 27.25], [30.32, 27.32], [29.97, 27.47], [29.75, 28.0], [29.85, 28.25], [29.75, 28.5], [29.97, 29.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.813775476822798}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.562903295269155}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.011633223384877, 24.7514744539954, 26.261610055149106, 26.393582464951862, 27.657409328635822]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.011633223384877, 22.210906356730675, 22.062147036880788, 21.920918063957288, 25.114174216624235]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8642979180075372, -2.6341368860050727, -2.687096374086217, -2.5871168563147116, -2.3095567673013115]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8642979180075372, -2.97253489841097, -3.813775476822798, -3.4040683906396225, -2.9235591859577994]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3897087396381693, -1.4515297268413803, -1.47210424958045, -1.4501521290725548, -1.3828297226327675]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3897087396381693, -1.7168974360677138, -1.7999672963855395, -1.723059879245377, -1.5861523271071527]}}