{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:23.989489", "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-May-18_to_2014-May-20_95.5_60.0"}, "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": 2014050000767}, "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 18 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 20 2014"}, "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": 97386.87882676974}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 60.0}, "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": 95.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "95.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 92.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.85, 56.25], [92.75, 56.5], [92.97, 57.03], [93.5, 57.25], [93.8, 57.13], [93.97, 57.53], [94.5, 57.75], [94.75, 57.65], [94.82, 57.68], [94.85, 57.75], [94.82, 57.82], [94.47, 57.97], [94.32, 58.32], [93.97, 58.47], [93.75, 59.0], [93.85, 59.25], [93.75, 59.5], [93.85, 59.75], [93.82, 59.82], [93.75, 59.85], [93.5, 59.75], [93.25, 59.85], [93.0, 59.75], [92.47, 59.97], [92.25, 60.5], [92.47, 61.03], [93.0, 61.25], [93.25, 61.15], [93.5, 61.25], [93.75, 61.15], [94.0, 61.25], [94.25, 61.15], [94.5, 61.25], [94.75, 61.15], [95.0, 61.25], [95.25, 61.15], [95.32, 61.18], [95.47, 61.53], [96.0, 61.75], [96.25, 61.65], [96.5, 61.75], [96.75, 61.65], [97.0, 61.75], [97.25, 61.65], [97.5, 61.75], [97.75, 61.65], [98.0, 61.75], [98.25, 61.65], [98.5, 61.75], [99.03, 61.53], [99.18, 61.18], [99.53, 61.03], [99.75, 60.5], [99.53, 59.97], [99.0, 59.75], [98.75, 59.85], [98.68, 59.82], [98.53, 59.47], [98.18, 59.32], [98.03, 58.97], [97.68, 58.82], [97.53, 58.47], [97.0, 58.25], [96.75, 58.35], [96.68, 58.32], [96.53, 57.97], [96.18, 57.82], [96.15, 57.75], [96.25, 57.5], [96.15, 57.25], [96.25, 57.0], [96.15, 56.75], [96.25, 56.5], [96.15, 56.25], [96.25, 56.0], [96.15, 55.75], [96.25, 55.5], [96.03, 54.97], [95.5, 54.75], [95.25, 54.85], [95.0, 54.75], [94.75, 54.85], [94.5, 54.75], [94.25, 54.85], [94.0, 54.75], [93.75, 54.85], [93.5, 54.75], [92.97, 54.97], [92.75, 55.5], [92.85, 55.75], [92.75, 56.0], [92.85, 56.25]]]]}, "2014-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.85, 56.25], [92.75, 56.5], [92.97, 57.03], [93.5, 57.25], [93.8, 57.13], [93.97, 57.53], [94.5, 57.75], [94.75, 57.65], [94.82, 57.68], [94.85, 57.75], [94.82, 57.82], [94.47, 57.97], [94.32, 58.32], [93.97, 58.47], [93.75, 59.0], [93.85, 59.25], [93.75, 59.5], [93.85, 59.75], [93.82, 59.82], [93.75, 59.85], [93.5, 59.75], [93.25, 59.85], [93.0, 59.75], [92.47, 59.97], [92.25, 60.5], [92.47, 61.03], [93.0, 61.25], [93.25, 61.15], [93.5, 61.25], [93.75, 61.15], [94.0, 61.25], [94.25, 61.15], [94.5, 61.25], [94.75, 61.15], [95.0, 61.25], [95.25, 61.15], [95.32, 61.18], [95.47, 61.53], [96.0, 61.75], [96.25, 61.65], [96.5, 61.75], [96.75, 61.65], [97.0, 61.75], [97.25, 61.65], [97.5, 61.75], [97.75, 61.65], [98.0, 61.75], [98.25, 61.65], [98.5, 61.75], [99.03, 61.53], [99.18, 61.18], [99.53, 61.03], [99.75, 60.5], [99.53, 59.97], [99.0, 59.75], [98.75, 59.85], [98.68, 59.82], [98.53, 59.47], [98.18, 59.32], [98.03, 58.97], [97.68, 58.82], [97.53, 58.47], [97.0, 58.25], [96.75, 58.35], [96.68, 58.32], [96.53, 57.97], [96.18, 57.82], [96.15, 57.75], [96.25, 57.5], [96.15, 57.25], [96.25, 57.0], [96.15, 56.75], [96.25, 56.5], [96.15, 56.25], [96.25, 56.0], [96.15, 55.75], [96.25, 55.5], [96.03, 54.97], [95.5, 54.75], [95.25, 54.85], [95.0, 54.75], [94.75, 54.85], [94.5, 54.75], [94.25, 54.85], [94.0, 54.75], [93.75, 54.85], [93.5, 54.75], [92.97, 54.97], [92.75, 55.5], [92.85, 55.75], [92.75, 56.0], [92.85, 56.25]]]]}, "2014-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.85, 56.25], [92.75, 56.5], [92.97, 57.03], [93.5, 57.25], [93.8, 57.13], [93.97, 57.53], [94.5, 57.75], [94.75, 57.65], [94.82, 57.68], [94.85, 57.75], [94.82, 57.82], [94.47, 57.97], [94.32, 58.32], [93.97, 58.47], [93.75, 59.0], [93.85, 59.25], [93.75, 59.5], [93.85, 59.75], [93.82, 59.82], [93.75, 59.85], [93.5, 59.75], [93.25, 59.85], [93.0, 59.75], [92.47, 59.97], [92.25, 60.5], [92.47, 61.03], [93.0, 61.25], [93.25, 61.15], [93.5, 61.25], [93.75, 61.15], [94.0, 61.25], [94.25, 61.15], [94.5, 61.25], [94.75, 61.15], [95.0, 61.25], [95.25, 61.15], [95.32, 61.18], [95.47, 61.53], [96.0, 61.75], [96.25, 61.65], [96.5, 61.75], [96.75, 61.65], [97.0, 61.75], [97.25, 61.65], [97.5, 61.75], [97.75, 61.65], [98.0, 61.75], [98.25, 61.65], [98.5, 61.75], [99.03, 61.53], [99.18, 61.18], [99.53, 61.03], [99.75, 60.5], [99.53, 59.97], [99.0, 59.75], [98.75, 59.85], [98.68, 59.82], [98.53, 59.47], [98.18, 59.32], [98.03, 58.97], [97.68, 58.82], [97.53, 58.47], [97.0, 58.25], [96.75, 58.35], [96.68, 58.32], [96.53, 57.97], [96.18, 57.82], [96.15, 57.75], [96.25, 57.5], [96.15, 57.25], [96.25, 57.0], [96.15, 56.75], [96.25, 56.5], [96.15, 56.25], [96.25, 56.0], [96.15, 55.75], [96.25, 55.5], [96.03, 54.97], [95.5, 54.75], [95.25, 54.85], [95.0, 54.75], [94.75, 54.85], [94.5, 54.75], [94.25, 54.85], [94.0, 54.75], [93.75, 54.85], [93.5, 54.75], [92.97, 54.97], [92.75, 55.5], [92.85, 55.75], [92.75, 56.0], [92.85, 56.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.8855233092371}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.812765116373035}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.015304691480650945, -0.3730356714136178, 1.413603820585763]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-2.906059013423601, -3.794098339595223, -0.7898046426578276]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.8815682075765565, -8.47627944359624, -7.0804476979463145]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.471104039775469, -9.8855233092371, -8.024341300681385]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5599232452732776, -1.632179973861949, -1.3417924354272948]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.801249695830383, -1.858311179498046, -1.4874421413462329]}}