{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:26.905414", "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-Jul-26_to_2024-Jul-28_168.0_64.0"}, "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": 2024070000666}, "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": "July 26 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 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": 92064.50478903377}, "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": ["Russian-Far-East"]}, "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": 64.0}, "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": 168.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "168.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 164.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 172.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.25, 62.0], [164.47, 62.53], [164.82, 62.68], [164.85, 62.75], [164.75, 63.0], [164.97, 63.53], [165.5, 63.75], [165.75, 63.65], [165.82, 63.68], [165.97, 64.03], [166.5, 64.25], [166.75, 64.15], [167.0, 64.25], [167.25, 64.15], [167.32, 64.18], [167.47, 64.53], [168.0, 64.75], [168.25, 64.65], [168.5, 64.75], [168.75, 64.65], [168.82, 64.68], [168.97, 65.03], [169.5, 65.25], [169.75, 65.15], [170.0, 65.25], [170.25, 65.15], [170.5, 65.25], [171.03, 65.03], [171.18, 64.68], [171.25, 64.65], [171.5, 64.75], [171.75, 64.65], [172.0, 64.75], [172.53, 64.53], [172.75, 64.0], [172.65, 63.75], [172.75, 63.5], [172.53, 62.97], [172.0, 62.75], [171.75, 62.85], [171.5, 62.75], [171.25, 62.85], [171.18, 62.82], [171.03, 62.47], [170.5, 62.25], [170.25, 62.35], [170.0, 62.25], [169.75, 62.35], [169.68, 62.32], [169.53, 61.97], [169.18, 61.82], [169.03, 61.47], [168.68, 61.32], [168.65, 61.25], [168.75, 61.0], [168.53, 60.47], [168.0, 60.25], [167.75, 60.35], [167.5, 60.25], [167.25, 60.35], [167.0, 60.25], [166.75, 60.35], [166.5, 60.25], [166.25, 60.35], [166.0, 60.25], [165.75, 60.35], [165.5, 60.25], [165.25, 60.35], [165.18, 60.32], [165.03, 59.97], [164.5, 59.75], [163.97, 59.97], [163.75, 60.5], [163.97, 61.03], [164.32, 61.18], [164.46, 61.5], [164.25, 62.0]]]]}, "2024-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.25, 62.0], [164.47, 62.53], [164.82, 62.68], [164.85, 62.75], [164.75, 63.0], [164.97, 63.53], [165.5, 63.75], [165.75, 63.65], [165.82, 63.68], [165.97, 64.03], [166.5, 64.25], [166.75, 64.15], [167.0, 64.25], [167.25, 64.15], [167.32, 64.18], [167.47, 64.53], [168.0, 64.75], [168.25, 64.65], [168.5, 64.75], [168.75, 64.65], [168.82, 64.68], [168.97, 65.03], [169.5, 65.25], [169.75, 65.15], [170.0, 65.25], [170.25, 65.15], [170.5, 65.25], [171.03, 65.03], [171.18, 64.68], [171.25, 64.65], [171.5, 64.75], [171.75, 64.65], [172.0, 64.75], [172.53, 64.53], [172.75, 64.0], [172.65, 63.75], [172.75, 63.5], [172.53, 62.97], [172.0, 62.75], [171.75, 62.85], [171.5, 62.75], [171.25, 62.85], [171.18, 62.82], [171.03, 62.47], [170.5, 62.25], [170.25, 62.35], [170.0, 62.25], [169.75, 62.35], [169.68, 62.32], [169.53, 61.97], [169.18, 61.82], [169.03, 61.47], [168.68, 61.32], [168.65, 61.25], [168.75, 61.0], [168.53, 60.47], [168.0, 60.25], [167.75, 60.35], [167.5, 60.25], [167.25, 60.35], [167.0, 60.25], [166.75, 60.35], [166.5, 60.25], [166.25, 60.35], [166.0, 60.25], [165.75, 60.35], [165.5, 60.25], [165.25, 60.35], [165.18, 60.32], [165.03, 59.97], [164.5, 59.75], [163.97, 59.97], [163.75, 60.5], [163.97, 61.03], [164.32, 61.18], [164.46, 61.5], [164.25, 62.0]]]]}, "2024-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.25, 62.0], [164.47, 62.53], [164.82, 62.68], [164.85, 62.75], [164.75, 63.0], [164.97, 63.53], [165.5, 63.75], [165.75, 63.65], [165.82, 63.68], [165.97, 64.03], [166.5, 64.25], [166.75, 64.15], [167.0, 64.25], [167.25, 64.15], [167.32, 64.18], [167.47, 64.53], [168.0, 64.75], [168.25, 64.65], [168.5, 64.75], [168.75, 64.65], [168.82, 64.68], [168.97, 65.03], [169.5, 65.25], [169.75, 65.15], [170.0, 65.25], [170.25, 65.15], [170.5, 65.25], [171.03, 65.03], [171.18, 64.68], [171.25, 64.65], [171.5, 64.75], [171.75, 64.65], [172.0, 64.75], [172.53, 64.53], [172.75, 64.0], [172.65, 63.75], [172.75, 63.5], [172.53, 62.97], [172.0, 62.75], [171.75, 62.85], [171.5, 62.75], [171.25, 62.85], [171.18, 62.82], [171.03, 62.47], [170.5, 62.25], [170.25, 62.35], [170.0, 62.25], [169.75, 62.35], [169.68, 62.32], [169.53, 61.97], [169.18, 61.82], [169.03, 61.47], [168.68, 61.32], [168.65, 61.25], [168.75, 61.0], [168.53, 60.47], [168.0, 60.25], [167.75, 60.35], [167.5, 60.25], [167.25, 60.35], [167.0, 60.25], [166.75, 60.35], [166.5, 60.25], [166.25, 60.35], [166.0, 60.25], [165.75, 60.35], [165.5, 60.25], [165.25, 60.35], [165.18, 60.32], [165.03, 59.97], [164.5, 59.75], [163.97, 59.97], [163.75, 60.5], [163.97, 61.03], [164.32, 61.18], [164.46, 61.5], [164.25, 62.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.922022598645867}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.415110321605061}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.061508207347174, 8.284243615553919, 9.121061214521887]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.4363593575639015, 5.971669808811896, 5.285294556697465]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.952760059371617, -5.620846099820127, -4.6717248056234455]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.922022598645867, -7.394968736180829, -6.8560221263068115]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.039974829165471, -1.9756555534301574, -1.6412888727650856]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.7525438393964032, -2.400582099676506, -2.0593038559092953]}}