{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:14.626802", "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-Mar-17_to_2010-Mar-20_291.5_7.0"}, "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": 2010030000543}, "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": "March 17 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 20 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 58313.868512369954}, "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": ["Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": 7.0}, "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": 291.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 289.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 292.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.65, 6.25], [-70.75, 6.5], [-70.65, 6.75], [-70.75, 7.0], [-70.53, 7.53], [-70.12, 7.7], [-70.25, 8.0], [-70.03, 8.53], [-69.5, 8.75], [-69.25, 8.65], [-69.0, 8.75], [-68.47, 8.53], [-68.32, 8.18], [-67.97, 8.03], [-67.75, 7.5], [-67.85, 7.25], [-67.75, 7.0], [-67.97, 6.47], [-68.32, 6.32], [-68.35, 6.25], [-68.25, 6.0], [-68.47, 5.47], [-68.82, 5.32], [-68.97, 4.97], [-69.5, 4.75], [-69.75, 4.85], [-70.0, 4.75], [-70.53, 4.97], [-70.75, 5.5], [-70.65, 5.75], [-70.75, 6.0], [-70.65, 6.25]]]]}, "2010-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.65, 6.25], [-70.75, 6.5], [-70.65, 6.75], [-70.75, 7.0], [-70.53, 7.53], [-70.12, 7.7], [-70.25, 8.0], [-70.03, 8.53], [-69.5, 8.75], [-69.25, 8.65], [-69.0, 8.75], [-68.47, 8.53], [-68.32, 8.18], [-68.25, 8.15], [-68.0, 8.25], [-67.47, 8.03], [-67.32, 7.68], [-66.97, 7.53], [-66.75, 7.0], [-66.97, 6.47], [-67.5, 6.25], [-67.75, 6.35], [-68.0, 6.25], [-68.25, 6.35], [-68.32, 6.32], [-68.35, 6.25], [-68.25, 6.0], [-68.47, 5.47], [-68.82, 5.32], [-68.97, 4.97], [-69.5, 4.75], [-69.75, 4.85], [-70.0, 4.75], [-70.53, 4.97], [-70.75, 5.5], [-70.65, 5.75], [-70.75, 6.0], [-70.65, 6.25]]]]}, "2010-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.65, 6.25], [-70.75, 6.5], [-70.65, 6.75], [-70.75, 7.0], [-70.53, 7.53], [-70.12, 7.7], [-70.25, 8.0], [-70.03, 8.53], [-69.5, 8.75], [-69.25, 8.65], [-69.0, 8.75], [-68.47, 8.53], [-68.32, 8.18], [-68.25, 8.15], [-68.0, 8.25], [-67.47, 8.03], [-67.32, 7.68], [-66.97, 7.53], [-66.75, 7.0], [-66.97, 6.47], [-67.5, 6.25], [-67.75, 6.35], [-68.0, 6.25], [-68.25, 6.35], [-68.32, 6.32], [-68.35, 6.25], [-68.25, 6.0], [-68.47, 5.47], [-68.82, 5.32], [-68.97, 4.97], [-69.5, 4.75], [-69.75, 4.85], [-70.0, 4.75], [-70.53, 4.97], [-70.75, 5.5], [-70.65, 5.75], [-70.75, 6.0], [-70.65, 6.25]]]]}, "2010-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.0, 8.25], [-67.47, 8.03], [-67.32, 7.68], [-66.97, 7.53], [-66.75, 7.0], [-66.97, 6.47], [-67.5, 6.25], [-67.75, 6.35], [-68.0, 6.25], [-68.25, 6.35], [-68.5, 6.25], [-69.03, 6.47], [-69.25, 7.0], [-69.03, 7.53], [-68.68, 7.68], [-68.53, 8.03], [-68.0, 8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.136701399502442}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.669764171872175}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.62446422006741, 27.154609375215387, 26.52104400400816, 28.684912999434175]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.55162686134088, 26.563752240113388, 25.77451351401845, 28.437958241648516]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0419681705207893, -2.7019338935428285, -3.3057446580652607, -2.0072346899249567]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.381217520116877, -3.6847519873124384, -4.136701399502442, -2.1899055300836494]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.491898664357527, -1.977248460240492, -2.3269978888911935, -1.422145133740981]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6845392036597744, -2.6674542051876236, -2.870466875477532, -1.574356788553334]}}