{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:39.194792", "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": "2016-Jan-10_to_2016-Jan-13_121.5_57.0"}, "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": 2016010001557}, "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 10 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2016"}, "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": 59581.20518119433}, "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": 57.0}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 120.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.35, 56.75], [120.25, 57.0], [120.47, 57.53], [120.82, 57.68], [120.97, 58.03], [121.5, 58.25], [121.75, 58.15], [122.0, 58.25], [122.53, 58.03], [122.68, 57.68], [123.03, 57.53], [123.25, 57.0], [123.15, 56.75], [123.18, 56.68], [123.53, 56.53], [123.68, 56.18], [124.03, 56.03], [124.18, 55.68], [124.53, 55.53], [124.75, 55.0], [124.53, 54.47], [124.18, 54.32], [124.03, 53.97], [123.68, 53.82], [123.65, 53.75], [123.75, 53.5], [123.53, 52.97], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.47, 52.97], [121.32, 53.32], [120.97, 53.47], [120.75, 54.0], [120.97, 54.53], [121.32, 54.68], [121.46, 55.0], [121.32, 55.32], [121.25, 55.35], [121.0, 55.25], [120.47, 55.47], [120.25, 56.0], [120.35, 56.25], [120.25, 56.5], [120.35, 56.75]]]]}, "2016-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.35, 56.75], [120.25, 57.0], [120.47, 57.53], [120.82, 57.68], [120.97, 58.03], [121.5, 58.25], [121.75, 58.15], [122.0, 58.25], [122.53, 58.03], [122.68, 57.68], [123.03, 57.53], [123.25, 57.0], [123.15, 56.75], [123.18, 56.68], [123.53, 56.53], [123.68, 56.18], [124.03, 56.03], [124.18, 55.68], [124.53, 55.53], [124.75, 55.0], [124.53, 54.47], [124.18, 54.32], [124.03, 53.97], [123.68, 53.82], [123.65, 53.75], [123.75, 53.5], [123.53, 52.97], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.47, 52.97], [121.32, 53.32], [120.97, 53.47], [120.75, 54.0], [120.97, 54.53], [121.32, 54.68], [121.46, 55.0], [121.32, 55.32], [121.25, 55.35], [121.0, 55.25], [120.47, 55.47], [120.25, 56.0], [120.35, 56.25], [120.25, 56.5], [120.35, 56.75]]]]}, "2016-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.35, 56.75], [120.25, 57.0], [120.47, 57.53], [120.82, 57.68], [120.97, 58.03], [121.5, 58.25], [121.75, 58.15], [122.0, 58.25], [122.53, 58.03], [122.68, 57.68], [123.03, 57.53], [123.25, 57.0], [123.15, 56.75], [123.18, 56.68], [123.53, 56.53], [123.68, 56.18], [124.03, 56.03], [124.18, 55.68], [124.53, 55.53], [124.75, 55.0], [124.53, 54.47], [124.18, 54.32], [124.03, 53.97], [123.68, 53.82], [123.65, 53.75], [123.75, 53.5], [123.53, 52.97], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.47, 52.97], [121.32, 53.32], [120.97, 53.47], [120.75, 54.0], [120.97, 54.53], [121.32, 54.68], [121.46, 55.0], [121.32, 55.32], [121.25, 55.35], [121.0, 55.25], [120.47, 55.47], [120.25, 56.0], [120.35, 56.25], [120.25, 56.5], [120.35, 56.75]]]]}, "2016-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.25, 57.0], [120.47, 57.53], [121.0, 57.75], [121.25, 57.65], [121.5, 57.75], [121.75, 57.65], [122.0, 57.75], [122.53, 57.53], [122.75, 57.0], [122.53, 56.47], [122.18, 56.32], [122.03, 55.97], [121.5, 55.75], [120.97, 55.97], [120.82, 56.32], [120.47, 56.47], [120.25, 57.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.89351452416085}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.60117395034611}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-19.800321765010864, -19.39235836457692, -20.61743156450501, -25.347686912316135]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-17.840885427354124, -16.29436397180234, -17.36884665479181, -24.94132502417321]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.70197547011745, 10.24967574407582, 9.119645424303645, 7.325088256948227]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.76573402983638, 12.89351452416085, 11.598158093752517, 8.099316299806617]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7447926121695634, 1.8908693924053475, 1.6946264849314367, 1.2918780273939863]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2093925194476287, 2.118511207435367, 1.933549664500961, 1.380028103107756]}}