{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:42.946984", "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": "2010-May-31_to_2010-Jun-02_358.5_20.5"}, "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": 2010050000973}, "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": "May 31 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 78093.18077261667}, "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": ["Mali"]}, "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": 20.5}, "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": 358.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "358.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 356.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "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": {"2010-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.65, 21.25], [-3.75, 21.5], [-3.53, 22.03], [-3.18, 22.18], [-3.03, 22.53], [-2.5, 22.75], [-1.97, 22.53], [-1.82, 22.18], [-1.75, 22.15], [-1.5, 22.25], [-0.97, 22.03], [-0.82, 21.68], [-0.75, 21.65], [-0.5, 21.75], [-0.25, 21.65], [0.0, 21.75], [0.53, 21.53], [0.75, 21.0], [0.65, 20.75], [0.68, 20.68], [0.75, 20.65], [1.0, 20.75], [1.53, 20.53], [1.75, 20.0], [1.65, 19.75], [1.75, 19.5], [1.53, 18.97], [1.0, 18.75], [0.75, 18.85], [0.5, 18.75], [-0.03, 18.97], [-0.18, 19.32], [-0.25, 19.35], [-0.5, 19.25], [-0.75, 19.35], [-1.0, 19.25], [-1.25, 19.35], [-1.5, 19.25], [-2.03, 19.47], [-2.18, 19.82], [-2.25, 19.85], [-2.5, 19.75], [-2.75, 19.85], [-3.0, 19.75], [-3.53, 19.97], [-3.75, 20.5], [-3.65, 20.75], [-3.75, 21.0], [-3.65, 21.25]]]]}, "2010-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.65, 21.25], [-3.75, 21.5], [-3.53, 22.03], [-3.18, 22.18], [-3.03, 22.53], [-2.5, 22.75], [-1.97, 22.53], [-1.82, 22.18], [-1.75, 22.15], [-1.5, 22.25], [-0.97, 22.03], [-0.82, 21.68], [-0.75, 21.65], [-0.5, 21.75], [-0.25, 21.65], [0.0, 21.75], [0.53, 21.53], [0.75, 21.0], [0.65, 20.75], [0.68, 20.68], [0.75, 20.65], [1.0, 20.75], [1.53, 20.53], [1.75, 20.0], [1.65, 19.75], [1.75, 19.5], [1.53, 18.97], [1.0, 18.75], [0.75, 18.85], [0.5, 18.75], [-0.03, 18.97], [-0.18, 19.32], [-0.25, 19.35], [-0.5, 19.25], [-0.75, 19.35], [-1.0, 19.25], [-1.25, 19.35], [-1.5, 19.25], [-2.03, 19.47], [-2.18, 19.82], [-2.25, 19.85], [-2.5, 19.75], [-2.75, 19.85], [-3.0, 19.75], [-3.53, 19.97], [-3.75, 20.5], [-3.65, 20.75], [-3.75, 21.0], [-3.65, 21.25]]]]}, "2010-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.65, 21.25], [-3.75, 21.5], [-3.53, 22.03], [-3.18, 22.18], [-3.03, 22.53], [-2.5, 22.75], [-1.97, 22.53], [-1.82, 22.18], [-1.75, 22.15], [-1.5, 22.25], [-0.97, 22.03], [-0.82, 21.68], [-0.75, 21.65], [-0.5, 21.75], [-0.25, 21.65], [0.0, 21.75], [0.53, 21.53], [0.75, 21.0], [0.65, 20.75], [0.68, 20.68], [0.75, 20.65], [1.0, 20.75], [1.53, 20.53], [1.75, 20.0], [1.65, 19.75], [1.75, 19.5], [1.53, 18.97], [1.0, 18.75], [0.75, 18.85], [0.5, 18.75], [-0.03, 18.97], [-0.18, 19.32], [-0.25, 19.35], [-0.5, 19.25], [-0.75, 19.35], [-1.0, 19.25], [-1.25, 19.35], [-1.5, 19.25], [-2.03, 19.47], [-2.18, 19.82], [-2.25, 19.85], [-2.5, 19.75], [-2.75, 19.85], [-3.0, 19.75], [-3.53, 19.97], [-3.75, 20.5], [-3.65, 20.75], [-3.75, 21.0], [-3.65, 21.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.153135094704567}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9210423590028083}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.885085795008138, 31.92951218289977, 32.84877062630795]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.143725010846765, 30.93805887397133, 31.92074367484446]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1110276647427675, -3.2050141868876403, -2.4470852253780175]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.153135094704567, -3.546871194518758, -3.0569265606860654]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7898798380016347, -1.9139832194834066, -1.5212523879761382]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0439624612047465, -2.070446026589179, -1.8879400520772693]}}