{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:45.821661", "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": "2020-Dec-19_to_2020-Dec-22_115.5_54.5"}, "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": 2020120002345}, "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": "December 19 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 22 2020"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 57236.36602119235}, "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": 54.5}, "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": 115.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 115.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.97, 52.47], [106.75, 53.0], [106.97, 53.53], [107.5, 53.75], [107.75, 53.65], [107.82, 53.68], [107.97, 54.03], [108.32, 54.18], [108.35, 54.25], [108.25, 54.5], [108.35, 54.75], [108.32, 54.82], [107.97, 54.97], [107.75, 55.5], [107.85, 55.75], [107.75, 56.0], [107.97, 56.53], [108.5, 56.75], [109.03, 56.53], [109.18, 56.18], [109.25, 56.15], [109.32, 56.18], [109.47, 56.53], [110.0, 56.75], [110.25, 56.65], [110.5, 56.75], [110.75, 56.65], [111.0, 56.75], [111.53, 56.53], [111.75, 56.0], [111.53, 55.47], [111.0, 55.25], [111.25, 55.15], [111.5, 55.25], [111.75, 55.15], [112.0, 55.25], [112.25, 55.15], [112.5, 55.25], [112.75, 55.15], [113.0, 55.25], [113.53, 55.03], [113.68, 54.68], [113.75, 54.65], [114.0, 54.75], [114.25, 54.65], [114.5, 54.75], [114.75, 54.65], [115.0, 54.75], [115.53, 54.53], [115.75, 54.0], [115.53, 53.47], [115.0, 53.25], [114.75, 53.35], [114.5, 53.25], [114.25, 53.35], [114.0, 53.25], [113.75, 53.35], [113.68, 53.32], [113.53, 52.97], [113.0, 52.75], [112.47, 52.97], [112.25, 53.5], [112.38, 53.8], [112.25, 53.85], [112.0, 53.75], [111.75, 53.85], [111.5, 53.75], [111.25, 53.85], [111.0, 53.75], [110.75, 53.85], [110.5, 53.75], [110.25, 53.85], [110.0, 53.75], [109.75, 53.85], [109.68, 53.82], [109.53, 53.47], [109.18, 53.32], [109.03, 52.97], [108.68, 52.82], [108.53, 52.47], [108.0, 52.25], [107.75, 52.35], [107.5, 52.25], [106.97, 52.47]], [[110.75, 55.35], [110.68, 55.32], [110.65, 55.25], [110.68, 55.18], [110.75, 55.15], [111.0, 55.25], [110.75, 55.35]]]]}, "2020-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.97, 52.47], [106.75, 53.0], [106.97, 53.53], [107.5, 53.75], [107.75, 53.65], [107.82, 53.68], [107.97, 54.03], [108.32, 54.18], [108.35, 54.25], [108.25, 54.5], [108.35, 54.75], [108.32, 54.82], [107.97, 54.97], [107.75, 55.5], [107.85, 55.75], [107.75, 56.0], [107.97, 56.53], [108.5, 56.75], [109.03, 56.53], [109.18, 56.18], [109.25, 56.15], [109.32, 56.18], [109.47, 56.53], [110.0, 56.75], [110.25, 56.65], [110.5, 56.75], [110.75, 56.65], [111.0, 56.75], [111.53, 56.53], [111.75, 56.0], [111.53, 55.47], [111.0, 55.25], [111.25, 55.15], [111.5, 55.25], [111.75, 55.15], [112.0, 55.25], [112.25, 55.15], [112.5, 55.25], [112.75, 55.15], [113.0, 55.25], [113.53, 55.03], [113.68, 54.68], [113.75, 54.65], [114.0, 54.75], [114.25, 54.65], [114.32, 54.68], [114.47, 55.03], [114.82, 55.18], [114.97, 55.53], [115.5, 55.75], [116.03, 55.53], [116.25, 55.0], [116.15, 54.75], [116.25, 54.5], [116.03, 53.97], [115.68, 53.82], [115.53, 53.47], [115.0, 53.25], [114.75, 53.35], [114.5, 53.25], [114.25, 53.35], [114.0, 53.25], [113.75, 53.35], [113.68, 53.32], [113.53, 52.97], [113.0, 52.75], [112.47, 52.97], [112.25, 53.5], [112.38, 53.8], [112.25, 53.85], [112.0, 53.75], [111.75, 53.85], [111.5, 53.75], [111.25, 53.85], [111.0, 53.75], [110.75, 53.85], [110.5, 53.75], [110.25, 53.85], [110.0, 53.75], [109.75, 53.85], [109.68, 53.82], [109.53, 53.47], [109.18, 53.32], [109.03, 52.97], [108.68, 52.82], [108.53, 52.47], [108.0, 52.25], [107.75, 52.35], [107.5, 52.25], [106.97, 52.47]], [[110.75, 55.35], [110.68, 55.32], [110.65, 55.25], [110.68, 55.18], [110.75, 55.15], [111.0, 55.25], [110.75, 55.35]]]]}, "2020-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.97, 52.47], [106.75, 53.0], [106.97, 53.53], [107.5, 53.75], [107.75, 53.65], [107.82, 53.68], [107.97, 54.03], [108.32, 54.18], [108.35, 54.25], [108.25, 54.5], [108.35, 54.75], [108.32, 54.82], [107.97, 54.97], [107.75, 55.5], [107.85, 55.75], [107.75, 56.0], [107.97, 56.53], [108.5, 56.75], [109.03, 56.53], [109.18, 56.18], [109.25, 56.15], [109.32, 56.18], [109.47, 56.53], [110.0, 56.75], [110.25, 56.65], [110.5, 56.75], [110.75, 56.65], [111.0, 56.75], [111.53, 56.53], [111.75, 56.0], [111.53, 55.47], [111.0, 55.25], [111.25, 55.15], [111.5, 55.25], [111.75, 55.15], [112.0, 55.25], [112.25, 55.15], [112.5, 55.25], [112.75, 55.15], [113.0, 55.25], [113.53, 55.03], [113.68, 54.68], [113.75, 54.65], [114.0, 54.75], [114.25, 54.65], [114.32, 54.68], [114.47, 55.03], [114.82, 55.18], [114.97, 55.53], [115.5, 55.75], [116.03, 55.53], [116.25, 55.0], [116.15, 54.75], [116.25, 54.5], [116.03, 53.97], [115.68, 53.82], [115.53, 53.47], [115.0, 53.25], [114.75, 53.35], [114.5, 53.25], [114.25, 53.35], [114.0, 53.25], [113.75, 53.35], [113.68, 53.32], [113.53, 52.97], [113.0, 52.75], [112.47, 52.97], [112.25, 53.5], [112.38, 53.8], [112.25, 53.85], [112.0, 53.75], [111.75, 53.85], [111.5, 53.75], [111.25, 53.85], [111.0, 53.75], [110.75, 53.85], [110.5, 53.75], [110.25, 53.85], [110.0, 53.75], [109.75, 53.85], [109.68, 53.82], [109.53, 53.47], [109.18, 53.32], [109.03, 52.97], [108.68, 52.82], [108.53, 52.47], [108.0, 52.25], [107.75, 52.35], [107.5, 52.25], [106.97, 52.47]], [[110.75, 55.35], [110.68, 55.32], [110.65, 55.25], [110.68, 55.18], [110.75, 55.15], [111.0, 55.25], [110.75, 55.35]]]]}, "2020-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.5, 55.75], [116.03, 55.53], [116.25, 55.0], [116.15, 54.75], [116.25, 54.5], [116.03, 53.97], [115.5, 53.75], [115.25, 53.85], [115.0, 53.75], [114.47, 53.97], [114.25, 54.5], [114.47, 55.03], [114.82, 55.18], [114.97, 55.53], [115.5, 55.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 15.444088245139682}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.81684407444497}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.205280671807884, -9.117096669678347, -12.262932070670956, -21.42202289343288]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-4.115802587125984, -3.55366263480272, -4.106295075217929, -21.032658145852878]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.222529457306571, 12.163249984704157, 9.153779961590722, 7.272906201130202]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.74702549406075, 15.444088245139682, 11.077288182830813, 7.633888261918003]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4500083250602809, 2.1581573650421784, 1.6438404811673708, 1.3340975923912792]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7863936548738186, 2.6733083291457795, 1.898635655586818, 1.3559395602613002]}}