{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:31.916205", "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": "2012-Sep-25_to_2012-Sep-29_148.5_65.0"}, "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": 2012090002614}, "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": "September 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 29 2012"}, "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": 61403.98584356297}, "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-Arctic", "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": 65.0}, "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": 148.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 154.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 62.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.5, 65.75], [149.03, 65.53], [149.25, 65.0], [149.03, 64.47], [148.5, 64.25], [147.97, 64.47], [147.75, 65.0], [147.97, 65.53], [148.5, 65.75]]]]}, "2012-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, 64.47], [147.25, 65.0], [147.47, 65.53], [148.0, 65.75], [148.25, 65.65], [148.5, 65.75], [149.03, 65.53], [149.25, 65.0], [149.03, 64.47], [148.5, 64.25], [148.25, 64.35], [148.0, 64.25], [147.47, 64.47]]]]}, "2012-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.88, 64.3], [147.47, 64.47], [147.25, 65.0], [147.47, 65.53], [148.0, 65.75], [148.25, 65.65], [148.5, 65.75], [149.0, 65.54], [149.5, 65.75], [149.75, 65.65], [150.0, 65.75], [150.25, 65.65], [150.5, 65.75], [150.75, 65.65], [151.0, 65.75], [151.25, 65.65], [151.5, 65.75], [151.75, 65.65], [151.82, 65.68], [151.97, 66.03], [152.5, 66.25], [152.75, 66.15], [153.0, 66.25], [153.25, 66.15], [153.5, 66.25], [153.75, 66.15], [153.82, 66.18], [153.97, 66.53], [154.5, 66.75], [155.03, 66.53], [155.25, 66.0], [155.03, 65.47], 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66.15], [153.5, 66.25], [153.75, 66.15], [153.82, 66.18], [153.97, 66.53], [154.5, 66.75], [155.03, 66.53], [155.25, 66.0], [155.03, 65.47], [154.68, 65.32], [154.65, 65.25], [154.75, 65.0], [154.53, 64.47], [154.18, 64.32], [154.03, 63.97], [153.68, 63.82], [153.53, 63.47], [153.0, 63.25], [152.75, 63.35], [152.5, 63.25], [152.25, 63.35], [152.0, 63.25], [151.75, 63.35], [151.68, 63.32], [151.53, 62.97], [151.0, 62.75], [150.75, 62.85], [150.68, 62.82], [150.53, 62.47], [150.0, 62.25], [149.75, 62.35], [149.5, 62.25], [149.25, 62.35], [149.0, 62.25], [148.47, 62.47], [148.32, 62.82], [147.97, 62.97], [147.75, 63.5], [147.85, 63.75], [147.75, 64.0], [147.88, 64.3]]]]}, "2012-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, 64.53], [148.32, 64.68], [148.47, 65.03], [148.82, 65.18], [148.97, 65.53], [149.5, 65.75], [149.75, 65.65], [150.0, 65.75], [150.25, 65.65], [150.5, 65.75], [150.75, 65.65], [151.0, 65.75], [151.25, 65.65], [151.5, 65.75], [151.75, 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anomaly over entire duration", "value": 6.198026074928219}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.728997873401795, 2.103161402723572, 4.692244982935506, 4.666276852637452, 3.059838270886246]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.728997873401795, 2.208368289557484, 6.894960083093508, 6.871040212869218, 4.861690029723945]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.370287131556324, 6.429950164621744, 6.357133465964397, 6.721471715310065, 5.4927181503544835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.370287131556324, 6.601844594121417, 8.345795177374612, 8.637098408248505, 6.736847272311081]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3495380400478394, 1.5810657848012566, 1.6948714875662216, 1.8250611189951482, 1.516048905527726]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3495380400478394, 1.609986940050935, 2.043512382870904, 2.214654224807715, 1.6730027534594276]}}