{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:48.462392", "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-Jul-07_to_2014-Jul-11_349.0_19.0"}, "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": 2014070000412}, "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 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 11 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": 174276.77127737697}, "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": ["Mauritania"]}, "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": 19.0}, "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": 349.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.53, 22.53], [-13.0, 22.75], [-12.47, 22.53], [-12.25, 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21.25], [-6.97, 21.03], [-6.75, 20.5], [-6.97, 19.97], [-7.32, 19.82], [-7.35, 19.75], [-7.25, 19.5], [-7.47, 18.97], [-7.82, 18.82], [-7.85, 18.75], [-7.75, 18.5], [-7.97, 17.97], [-8.5, 17.75], [-8.75, 17.85], [-9.0, 17.75], [-9.25, 17.85], [-9.5, 17.75], [-9.75, 17.85], [-10.0, 17.75], [-10.25, 17.85], [-10.5, 17.75], [-11.03, 17.97], [-11.18, 18.32], [-11.25, 18.35], [-11.5, 18.25], [-12.03, 18.47], [-12.18, 18.82], [-12.53, 18.97], [-12.68, 19.32], [-12.75, 19.35], [-13.0, 19.25], [-13.53, 19.47], [-13.68, 19.82], [-14.03, 19.97], [-14.25, 20.5]]]]}, "2014-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.25, 20.5], [-14.03, 21.03], [-13.68, 21.18], [-13.65, 21.25], [-13.75, 21.5], [-13.65, 21.75], [-13.75, 22.0], [-13.53, 22.53], [-13.0, 22.75], [-12.47, 22.53], [-12.25, 22.0], [-12.35, 21.75], [-12.32, 21.68], [-12.25, 21.65], [-12.0, 21.75], [-11.75, 21.65], [-11.68, 21.68], [-11.53, 22.03], [-11.0, 22.25], [-10.47, 22.03], [-10.32, 21.68], [-10.25, 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19.75], [-10.47, 19.53], [-10.25, 19.0], [-10.35, 18.75], [-10.25, 18.5], [-10.35, 18.25], [-10.25, 18.0], [-10.47, 17.47], [-11.0, 17.25], [-11.53, 17.47], [-11.75, 18.0], [-11.65, 18.25], [-11.75, 18.5], [-11.65, 18.75], [-11.75, 19.0]]], [[[-13.03, 19.97], [-13.25, 20.5], [-13.03, 21.03], [-12.5, 21.25], [-11.97, 21.03], [-11.75, 20.5], [-11.97, 19.97], [-12.5, 19.75], [-13.03, 19.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.607556602075249}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5900126608615737}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.017372567785458, 30.813510513376855, 30.082045567582497, 30.757345515630902, 31.227438016900464]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.806894518796184, 26.706239704588086, 28.58372334114864, 27.532375814562613, 30.517842984845345]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.895029492846413, -3.425487240554547, -4.094266092115507, -3.380526094205532, -2.3181139630361685]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.434223999311655, -6.607556602075249, -5.171681734271772, -5.664755967229951, -2.6854473803719543]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.41612371115288, -2.2345947414807084, -2.837302721994934, -2.3586005001187815, -1.6480993820791654]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4735678140262536, -2.9982594844754926, -3.987996306752772, -4.258282388459815, -2.0291147412564574]}}