{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:13.252710", "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": "2015-Jan-21_to_2015-Jan-25_113.0_53.5"}, "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": 2015010002571}, "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": "January 21 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 25 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 72732.83783583425}, "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": 53.5}, "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": 113.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 52.97], [111.75, 53.5], [111.97, 54.03], [112.5, 54.25], [112.75, 54.15], [113.0, 54.25], [113.25, 54.15], [113.5, 54.25], [113.75, 54.15], [114.0, 54.25], [114.53, 54.03], [114.75, 53.5], [114.53, 52.97], [114.0, 52.75], [113.75, 52.85], [113.5, 52.75], [113.25, 52.85], [113.0, 52.75], [112.75, 52.85], [112.5, 52.75], [111.97, 52.97]]]]}, "2015-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 54.03], [112.5, 54.25], [112.75, 54.15], [113.0, 54.25], [113.25, 54.15], [113.32, 54.18], [113.47, 54.53], [114.0, 54.75], [114.25, 54.65], [114.32, 54.68], [114.47, 55.03], [115.0, 55.25], [115.25, 55.15], [115.5, 55.25], [115.75, 55.15], [115.88, 55.2], [115.75, 55.5], [115.97, 56.03], [116.5, 56.25], [116.75, 56.15], [117.0, 56.25], [117.25, 56.15], [117.5, 56.25], [117.75, 56.15], [118.0, 56.25], [118.53, 56.03], [118.68, 55.68], [119.03, 55.53], [119.25, 55.0], [119.03, 54.47], [118.68, 54.32], [118.65, 54.25], [118.75, 54.0], [118.53, 53.47], [118.18, 53.32], [118.04, 53.0], [118.25, 52.5], [118.03, 51.97], [117.5, 51.75], [117.25, 51.85], [117.0, 51.75], [116.47, 51.97], [116.32, 52.32], [116.25, 52.35], [116.0, 52.25], [115.47, 52.47], [115.25, 53.0], [115.35, 53.25], [115.25, 53.5], [115.03, 52.97], [114.5, 52.75], [114.25, 52.85], [114.18, 52.82], [114.15, 52.75], [114.25, 52.5], [114.03, 51.97], [113.5, 51.75], [112.97, 51.97], [112.82, 52.32], [112.75, 52.35], [112.5, 52.25], [111.97, 52.47], [111.75, 53.0], [111.85, 53.25], [111.75, 53.5], [111.97, 54.03]], [[115.35, 53.75], [115.32, 53.82], [115.25, 53.85], [115.18, 53.82], [115.15, 53.75], [115.25, 53.5], [115.35, 53.75]]]]}, "2015-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 54.03], [112.5, 54.25], [112.75, 54.15], [113.0, 54.25], [113.25, 54.15], [113.32, 54.18], [113.47, 54.53], [114.0, 54.75], [114.25, 54.65], [114.32, 54.68], [114.47, 55.03], [115.0, 55.25], [115.25, 55.15], [115.5, 55.25], [115.75, 55.15], [115.88, 55.2], [115.75, 55.5], [115.97, 56.03], [116.5, 56.25], [116.75, 56.15], [117.0, 56.25], [117.25, 56.15], [117.5, 56.25], [117.75, 56.15], [118.0, 56.25], [118.53, 56.03], [118.68, 55.68], [119.03, 55.53], [119.25, 55.0], [119.03, 54.47], [118.68, 54.32], [118.65, 54.25], [118.75, 54.0], [118.53, 53.47], [118.18, 53.32], [118.04, 53.0], [118.25, 52.5], [118.03, 51.97], [117.5, 51.75], [117.25, 51.85], [117.0, 51.75], [116.47, 51.97], [116.32, 52.32], [116.25, 52.35], [116.0, 52.25], [115.47, 52.47], [115.25, 53.0], [115.35, 53.25], [115.25, 53.5], [115.03, 52.97], [114.5, 52.75], [114.25, 52.85], [114.18, 52.82], [114.15, 52.75], [114.25, 52.5], [114.03, 51.97], [113.5, 51.75], [112.97, 51.97], [112.82, 52.32], [112.75, 52.35], [112.5, 52.25], [111.97, 52.47], [111.75, 53.0], [111.85, 53.25], [111.75, 53.5], [111.97, 54.03]], [[115.35, 53.75], [115.32, 53.82], [115.25, 53.85], [115.18, 53.82], [115.15, 53.75], [115.25, 53.5], [115.35, 53.75]]]]}, "2015-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.0, 54.25], [113.25, 54.15], [113.32, 54.18], [113.47, 54.53], [114.0, 54.75], [114.25, 54.65], [114.32, 54.68], [114.47, 55.03], [115.0, 55.25], [115.25, 55.15], [115.5, 55.25], [115.75, 55.15], [115.88, 55.2], [115.75, 55.5], [115.97, 56.03], [116.5, 56.25], [116.75, 56.15], [117.0, 56.25], [117.25, 56.15], [117.5, 56.25], [117.75, 56.15], [118.0, 56.25], [118.53, 56.03], [118.68, 55.68], [119.03, 55.53], [119.25, 55.0], [119.03, 54.47], [118.68, 54.32], [118.65, 54.25], [118.75, 54.0], [118.53, 53.47], [118.18, 53.32], [118.04, 53.0], [118.25, 52.5], [118.03, 51.97], [117.5, 51.75], [117.25, 51.85], [117.0, 51.75], [116.47, 51.97], [116.32, 52.32], [116.25, 52.35], [116.0, 52.25], [115.47, 52.47], [115.25, 53.0], [115.35, 53.25], [115.25, 53.5], [115.03, 52.97], [114.5, 52.75], [114.25, 52.85], [114.18, 52.82], [114.15, 52.75], [114.25, 52.5], [114.03, 51.97], [113.5, 51.75], [112.97, 51.97], [112.82, 52.32], [112.75, 52.35], [112.5, 52.25], [111.97, 52.47], [111.75, 53.0], [111.97, 53.53], [112.32, 53.68], [112.47, 54.03], [113.0, 54.25]], [[115.35, 53.75], [115.32, 53.82], [115.25, 53.85], [115.18, 53.82], [115.15, 53.75], [115.25, 53.5], [115.35, 53.75]]]]}, "2015-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.47, 52.97], [115.25, 53.5], [115.47, 54.03], [116.0, 54.25], [116.53, 54.03], [116.75, 53.5], [116.57, 53.07], [117.0, 53.25], [117.25, 53.15], [117.5, 53.25], [118.03, 53.03], [118.25, 52.5], [118.03, 51.97], [117.5, 51.75], [117.25, 51.85], [117.0, 51.75], [116.47, 51.97], [116.25, 52.5], [116.43, 52.93], [116.0, 52.75], [115.47, 52.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.211248463704635}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.6146859616202835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-18.653422474908268, -19.40329964600511, -20.232965562191282, -20.676810668928653, -20.462658699955426]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-18.288316072786614, -14.439817162041777, -16.75496345701515, -17.019062923839385, -19.24337031500201]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.213736666596802, 8.665260046380999, 7.5767058077705824, 6.77715920120926, 5.535880494848054]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.454143026080004, 11.211248463704635, 10.625428765339421, 8.482536906936105, 5.827326432993601]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3936013195864996, 1.8158239801219103, 1.6391612764413181, 1.5412306659990813, 1.3053515046657822]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4760558963315502, 2.605543755599788, 2.341407830967051, 1.9686901226902678, 1.3752990711421273]}}