{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:11.546428", "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": "2024-Jun-08_to_2024-Jun-10_151.0_62.0"}, "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": 2024060000286}, "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": "June 08 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 10 2024"}, "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": 60134.88855246245}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 62.0}, "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": 151.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "151.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 150.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 156.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[150.35, 63.25], [150.25, 63.5], [150.47, 64.03], [151.0, 64.25], [151.25, 64.15], [151.5, 64.25], [152.03, 64.03], [152.18, 63.68], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.25, 63.65], [153.5, 63.75], [153.75, 63.65], [154.0, 63.75], [154.25, 63.65], [154.5, 63.75], [154.75, 63.65], [155.0, 63.75], [155.25, 63.65], [155.5, 63.75], [155.75, 63.65], [156.0, 63.75], [156.53, 63.53], [156.68, 63.18], [157.03, 63.03], [157.25, 62.5], [157.15, 62.25], [157.25, 62.0], [157.03, 61.47], [156.68, 61.32], [156.65, 61.25], [156.75, 61.0], [156.53, 60.47], [156.0, 60.25], [155.75, 60.35], [155.5, 60.25], [154.97, 60.47], [154.75, 61.0], [154.88, 61.3], [154.75, 61.35], [154.68, 61.32], [154.53, 60.97], [154.0, 60.75], [153.47, 60.97], [153.32, 61.32], [153.25, 61.35], [153.0, 61.25], [152.75, 61.35], [152.5, 61.25], [152.25, 61.35], [152.0, 61.25], [151.75, 61.35], [151.5, 61.25], [151.25, 61.35], [151.0, 61.25], [150.75, 61.35], [150.5, 61.25], [149.97, 61.47], [149.75, 62.0], [149.97, 62.53], [150.32, 62.68], [150.35, 62.75], [150.25, 63.0], [150.35, 63.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Far-East"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, 62.75], [150.25, 63.0], [150.35, 63.25], [150.25, 63.5], [150.47, 64.03], [151.0, 64.25], [151.25, 64.15], [151.5, 64.25], [152.03, 64.03], [152.18, 63.68], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.25, 63.65], [153.5, 63.75], [153.75, 63.65], [154.0, 63.75], [154.25, 63.65], [154.5, 63.75], [154.75, 63.65], [155.0, 63.75], [155.25, 63.65], [155.5, 63.75], [155.75, 63.65], [156.0, 63.75], [156.53, 63.53], [156.68, 63.18], [157.03, 63.03], [157.25, 62.5], [157.15, 62.25], [157.25, 62.0], [157.03, 61.47], [156.68, 61.32], [156.65, 61.25], [156.75, 61.0], [156.53, 60.47], [156.0, 60.25], [155.75, 60.35], [155.5, 60.25], [154.97, 60.47], [154.75, 61.0], [154.88, 61.3], [154.75, 61.35], [154.68, 61.32], [154.53, 60.97], [154.0, 60.75], [153.47, 60.97], [153.32, 61.32], [153.25, 61.35], [153.0, 61.25], [152.75, 61.35], [152.5, 61.25], [152.25, 61.35], [152.0, 61.25], [151.75, 61.35], [151.5, 61.25], [151.25, 61.35], [151.0, 61.25], [150.75, 61.35], [150.5, 61.25], [149.97, 61.47], [149.75, 62.0], [149.97, 62.53], [150.32, 62.68], [150.35, 62.75]]]]}, "2024-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, 62.75], [150.25, 63.0], [150.35, 63.25], [150.25, 63.5], [150.47, 64.03], [151.0, 64.25], [151.25, 64.15], [151.5, 64.25], [152.03, 64.03], [152.18, 63.68], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.25, 63.65], [153.5, 63.75], [153.75, 63.65], [154.0, 63.75], [154.25, 63.65], [154.5, 63.75], [154.75, 63.65], [155.0, 63.75], [155.25, 63.65], [155.5, 63.75], [155.75, 63.65], [156.0, 63.75], [156.53, 63.53], [156.68, 63.18], [157.03, 63.03], [157.25, 62.5], [157.15, 62.25], [157.25, 62.0], [157.03, 61.47], [156.68, 61.32], [156.65, 61.25], [156.75, 61.0], [156.53, 60.47], [156.0, 60.25], [155.75, 60.35], [155.5, 60.25], [154.97, 60.47], [154.75, 61.0], [154.88, 61.3], [154.75, 61.35], [154.68, 61.32], [154.53, 60.97], [154.0, 60.75], [153.47, 60.97], [153.32, 61.32], [153.25, 61.35], [153.0, 61.25], [152.75, 61.35], [152.5, 61.25], [152.25, 61.35], [152.0, 61.25], [151.75, 61.35], [151.5, 61.25], [151.25, 61.35], [151.0, 61.25], [150.75, 61.35], [150.5, 61.25], [149.97, 61.47], [149.75, 62.0], [149.97, 62.53], [150.32, 62.68], [150.35, 62.75]]]]}, "2024-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, 62.75], [150.25, 63.0], [150.35, 63.25], [150.25, 63.5], [150.47, 64.03], [151.0, 64.25], [151.25, 64.15], [151.5, 64.25], [152.03, 64.03], [152.18, 63.68], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.25, 63.65], [153.5, 63.75], [153.75, 63.65], [154.0, 63.75], [154.25, 63.65], [154.5, 63.75], [154.75, 63.65], [155.0, 63.75], [155.25, 63.65], [155.5, 63.75], [155.75, 63.65], [156.0, 63.75], [156.53, 63.53], [156.68, 63.18], [157.03, 63.03], [157.25, 62.5], [157.15, 62.25], [157.25, 62.0], [157.03, 61.47], [156.68, 61.32], [156.65, 61.25], [156.75, 61.0], [156.53, 60.47], [156.0, 60.25], [155.75, 60.35], [155.5, 60.25], [154.97, 60.47], [154.75, 61.0], [154.88, 61.3], [154.75, 61.35], [154.68, 61.32], [154.53, 60.97], [154.0, 60.75], [153.47, 60.97], [153.32, 61.32], [153.25, 61.35], [153.0, 61.25], [152.75, 61.35], [152.5, 61.25], [152.25, 61.35], [152.0, 61.25], [151.75, 61.35], [151.5, 61.25], [151.25, 61.35], [151.0, 61.25], [150.75, 61.35], [150.5, 61.25], [149.97, 61.47], [149.75, 62.0], [149.97, 62.53], [150.32, 62.68], [150.35, 62.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.765572551831212}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.145758414114859}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.245335675317449, 3.4558072804821336, 4.676764856016462]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.1193091530432753, -0.14079911819027302, 0.2971851500980165]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.7616054878448875, -6.829449074832992, -5.8462206796667]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.765572551831212, -8.590685389251007, -7.82427995120139]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6542642882877792, -1.9224148878621095, -1.6261361349956216]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.411009393330144, -2.3465274225203925, -2.2395246010848595]}}