{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:06.455460", "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-Aug-28_to_2014-Aug-30_93.0_56.0"}, "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": 2014080001198}, "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": "August 28 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 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": 113104.96565405327}, "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": 56.0}, "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": 93.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "93.0\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": 100.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 57.03], [93.0, 57.25], [93.25, 57.15], [93.5, 57.25], [93.75, 57.15], [93.82, 57.18], [93.85, 57.25], [93.75, 57.5], [93.97, 58.03], [94.5, 58.25], [94.75, 58.15], [94.82, 58.18], [94.85, 58.25], [94.75, 58.5], [94.85, 58.75], [94.75, 59.0], [94.97, 59.53], [95.5, 59.75], [96.03, 59.53], [96.18, 59.18], [96.53, 59.03], [96.75, 58.5], [96.63, 58.2], [97.03, 58.03], [97.18, 57.68], [97.25, 57.65], [97.5, 57.75], [97.75, 57.65], [98.0, 57.75], [98.25, 57.65], [98.5, 57.75], [99.03, 57.53], [99.18, 57.18], [99.25, 57.15], [99.5, 57.25], [100.03, 57.03], [100.18, 56.68], [100.53, 56.53], [100.75, 56.0], [100.65, 55.75], [100.75, 55.5], [100.53, 54.97], [100.18, 54.82], [100.03, 54.47], [99.5, 54.25], [99.25, 54.35], [99.0, 54.25], [98.75, 54.35], [98.5, 54.25], [98.25, 54.35], [98.0, 54.25], [97.75, 54.35], [97.5, 54.25], [96.97, 54.47], [96.82, 54.82], [96.75, 54.85], [96.5, 54.75], [96.25, 54.85], [96.0, 54.75], [95.75, 54.85], [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], [92.82, 55.32], [92.47, 55.47], [92.25, 56.0], [92.35, 56.25], [92.25, 56.5], [92.47, 57.03]]]]}, "2014-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 57.03], [93.0, 57.25], [93.25, 57.15], [93.5, 57.25], [93.75, 57.15], [93.82, 57.18], [93.85, 57.25], [93.75, 57.5], [93.97, 58.03], [94.5, 58.25], [94.75, 58.15], [94.82, 58.18], [94.85, 58.25], [94.75, 58.5], [94.85, 58.75], [94.75, 59.0], [94.97, 59.53], [95.5, 59.75], [96.03, 59.53], [96.18, 59.18], [96.53, 59.03], [96.75, 58.5], [96.63, 58.2], [97.03, 58.03], [97.18, 57.68], [97.25, 57.65], [97.5, 57.75], [97.75, 57.65], [98.0, 57.75], [98.25, 57.65], [98.5, 57.75], [99.03, 57.53], [99.18, 57.18], [99.25, 57.15], [99.5, 57.25], [100.03, 57.03], [100.18, 56.68], [100.53, 56.53], [100.75, 56.0], [100.65, 55.75], [100.75, 55.5], [100.53, 54.97], [100.18, 54.82], [100.03, 54.47], [99.5, 54.25], [99.25, 54.35], [99.0, 54.25], [98.75, 54.35], [98.5, 54.25], [98.25, 54.35], [98.0, 54.25], [97.75, 54.35], [97.5, 54.25], [96.97, 54.47], [96.82, 54.82], [96.75, 54.85], [96.5, 54.75], [96.25, 54.85], [96.0, 54.75], [95.75, 54.85], [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], [92.82, 55.32], [92.47, 55.47], [92.25, 56.0], [92.35, 56.25], [92.25, 56.5], [92.47, 57.03]]]]}, "2014-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 57.03], [93.0, 57.25], [93.25, 57.15], [93.5, 57.25], [93.75, 57.15], [93.82, 57.18], [93.85, 57.25], [93.75, 57.5], [93.97, 58.03], [94.5, 58.25], [94.75, 58.15], [94.82, 58.18], [94.85, 58.25], [94.75, 58.5], [94.85, 58.75], [94.75, 59.0], [94.97, 59.53], [95.5, 59.75], [96.03, 59.53], [96.18, 59.18], [96.53, 59.03], [96.75, 58.5], [96.63, 58.2], [97.03, 58.03], [97.18, 57.68], [97.25, 57.65], [97.5, 57.75], [97.75, 57.65], [98.0, 57.75], [98.25, 57.65], [98.5, 57.75], [99.03, 57.53], [99.18, 57.18], [99.25, 57.15], [99.5, 57.25], [100.03, 57.03], [100.18, 56.68], [100.53, 56.53], [100.75, 56.0], [100.65, 55.75], [100.75, 55.5], [100.53, 54.97], [100.18, 54.82], [100.03, 54.47], [99.5, 54.25], [99.25, 54.35], [99.0, 54.25], [98.75, 54.35], [98.5, 54.25], [98.25, 54.35], [98.0, 54.25], [97.75, 54.35], [97.5, 54.25], [96.97, 54.47], [96.82, 54.82], [96.75, 54.85], [96.5, 54.75], [96.25, 54.85], [96.0, 54.75], [95.75, 54.85], [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], [92.82, 55.32], [92.47, 55.47], [92.25, 56.0], [92.35, 56.25], [92.25, 56.5], [92.47, 57.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.565585936634704}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.965179352406407}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.7005923671235905, 6.167634180537561, 7.876086019039008]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.227806621383536, 3.30581918594703, 5.875553540488966]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.614504170673121, -7.075051637165219, -5.205982249380877]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.417253758981531, -8.565585936634704, -6.597438142490944]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6857935356555664, -2.1146698495142235, -1.5657761270033914]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.252879776934497, -2.548014042357728, -2.0362389652623945]}}