{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:26.385558", "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": "2010-Dec-13_to_2010-Dec-17_253.0_36.0"}, "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": 2010120002164}, "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 13 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 17 2010"}, "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": 134307.68851541387}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 36.0}, "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": 253.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "253.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 252.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 257.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.75, 36.5], [-107.53, 37.03], [-107.0, 37.25], [-106.7, 37.13], [-106.54, 37.5], [-106.75, 38.0], [-106.54, 38.5], [-106.75, 39.0], [-106.65, 39.25], [-106.75, 39.5], [-106.53, 40.03], [-106.12, 40.2], [-106.18, 40.32], [-106.25, 40.35], [-106.5, 40.25], [-106.75, 40.35], [-107.0, 40.25], [-107.25, 40.35], [-107.5, 40.25], [-108.03, 40.47], [-108.25, 41.0], [-108.03, 41.53], [-107.68, 41.68], [-107.53, 42.03], [-107.0, 42.25], [-106.5, 42.04], [-106.0, 42.25], [-105.47, 42.03], [-105.32, 41.68], [-104.97, 41.53], [-104.82, 41.18], [-104.47, 41.03], [-104.32, 40.68], [-103.97, 40.53], [-103.75, 40.0], [-103.85, 39.75], [-103.75, 39.5], [-103.97, 38.97], [-104.32, 38.82], [-104.35, 38.75], [-104.32, 38.68], [-103.97, 38.53], [-103.82, 38.18], [-103.75, 38.15], [-103.5, 38.25], [-102.97, 38.03], [-102.75, 37.5], [-102.85, 37.25], [-102.82, 37.18], [-102.47, 37.03], [-102.25, 36.5], [-102.47, 35.97], [-103.0, 35.75], [-103.25, 35.85], [-103.5, 35.75], [-103.8, 35.88], [-103.97, 35.47], [-104.37, 35.3], [-104.25, 35.0], [-104.47, 34.47], [-105.0, 34.25], [-105.25, 34.35], [-105.5, 34.25], [-105.75, 34.35], [-106.0, 34.25], [-106.53, 34.47], [-106.75, 35.0], [-106.65, 35.25], [-106.68, 35.32], [-106.75, 35.35], [-106.82, 35.32], [-106.97, 34.97], [-107.5, 34.75], [-108.03, 34.97], [-108.25, 35.5], [-108.03, 36.03], [-107.68, 36.18], [-107.65, 36.25], [-107.75, 36.5]]]]}, "2010-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 36.53], [-107.68, 36.68], [-107.53, 37.03], [-107.0, 37.25], [-106.7, 37.13], [-106.54, 37.5], [-106.75, 38.0], [-106.54, 38.5], [-106.75, 39.0], [-106.65, 39.25], [-106.75, 39.5], [-106.53, 40.03], [-106.12, 40.2], [-106.18, 40.32], [-106.25, 40.35], [-106.5, 40.25], [-106.75, 40.35], [-107.0, 40.25], [-107.25, 40.35], [-107.5, 40.25], [-108.03, 40.47], [-108.25, 41.0], [-108.03, 41.53], [-107.68, 41.68], [-107.53, 42.03], [-107.0, 42.25], [-106.5, 42.04], [-106.0, 42.25], [-105.47, 42.03], [-105.32, 41.68], [-104.97, 41.53], [-104.82, 41.18], [-104.47, 41.03], [-104.32, 40.68], [-103.97, 40.53], [-103.75, 40.0], [-103.85, 39.75], [-103.75, 39.5], [-103.97, 38.97], [-104.32, 38.82], [-104.35, 38.75], [-104.32, 38.68], [-103.97, 38.53], [-103.82, 38.18], [-103.75, 38.15], [-103.5, 38.25], [-102.97, 38.03], [-102.75, 37.5], [-102.85, 37.25], [-102.82, 37.18], [-102.47, 37.03], [-102.25, 36.5], [-102.47, 35.97], [-103.0, 35.75], [-103.25, 35.85], [-103.5, 35.75], [-103.8, 35.88], [-103.97, 35.47], [-104.37, 35.3], [-104.25, 35.0], [-104.47, 34.47], [-105.0, 34.25], [-105.25, 34.35], [-105.32, 34.32], [-105.47, 33.97], [-106.0, 33.75], [-106.53, 33.97], [-106.75, 34.5], [-106.65, 34.75], [-106.75, 35.0], [-106.65, 35.25], [-106.68, 35.32], [-106.75, 35.35], [-106.82, 35.32], [-106.97, 34.97], [-107.5, 34.75], [-108.03, 34.97], [-108.25, 35.5], [-108.15, 35.75], [-108.25, 36.0], [-108.03, 36.53]]]]}, "2010-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.04, 36.5], [-108.25, 37.0], [-108.03, 37.53], [-107.5, 37.75], [-107.25, 37.65], [-107.0, 37.75], [-106.57, 37.57], [-106.75, 38.0], [-106.54, 38.5], [-106.75, 39.0], [-106.65, 39.25], [-106.75, 39.5], [-106.53, 40.03], [-106.12, 40.2], [-106.18, 40.32], [-106.25, 40.35], [-106.5, 40.25], [-106.75, 40.35], [-107.0, 40.25], [-107.25, 40.35], [-107.5, 40.25], [-108.03, 40.47], [-108.25, 41.0], [-108.03, 41.53], [-107.68, 41.68], [-107.53, 42.03], [-107.0, 42.25], [-106.5, 42.04], [-106.0, 42.25], [-105.47, 42.03], [-105.32, 41.68], [-104.97, 41.53], [-104.82, 41.18], [-104.47, 41.03], [-104.32, 40.68], [-103.97, 40.53], [-103.75, 40.0], [-103.85, 39.75], [-103.75, 39.5], [-103.97, 38.97], [-104.32, 38.82], [-104.35, 38.75], [-104.32, 38.68], [-103.97, 38.53], [-103.82, 38.18], [-103.75, 38.15], [-103.5, 38.25], [-102.97, 38.03], [-102.75, 37.5], [-102.85, 37.25], [-102.82, 37.18], [-102.47, 37.03], [-102.25, 36.5], [-102.47, 35.97], [-103.0, 35.75], [-103.25, 35.85], [-103.5, 35.75], [-103.8, 35.88], [-103.97, 35.47], [-104.37, 35.3], [-104.25, 35.0], [-104.47, 34.47], [-105.0, 34.25], [-105.25, 34.35], [-105.32, 34.32], [-105.47, 33.97], [-106.0, 33.75], [-106.53, 33.97], [-106.75, 34.5], [-106.65, 34.75], [-106.75, 35.0], [-106.65, 35.25], [-106.68, 35.32], [-106.75, 35.35], [-106.82, 35.32], [-106.97, 34.97], [-107.5, 34.75], [-108.03, 34.97], [-108.25, 35.5], [-108.15, 35.75], [-108.25, 36.0], [-108.04, 36.5]]]]}, "2010-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.53, 33.97], [-106.75, 34.5], [-106.53, 35.03], [-106.0, 35.25], [-105.47, 35.03], [-105.25, 34.5], [-105.47, 33.97], [-106.0, 33.75], [-106.53, 33.97]]], [[[-107.5, 37.75], [-107.25, 37.65], [-107.0, 37.75], [-106.47, 37.53], [-106.25, 37.0], [-106.35, 36.75], [-106.25, 36.5], [-106.35, 36.25], [-106.25, 36.0], [-106.47, 35.47], [-107.0, 35.25], [-107.25, 35.35], [-107.5, 35.25], [-108.03, 35.47], [-108.25, 36.0], [-108.04, 36.5], [-108.25, 37.0], [-108.03, 37.53], [-107.5, 37.75]]]]}, "2010-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 36.47], [-108.25, 37.0], [-108.03, 37.53], [-107.5, 37.75], [-107.25, 37.65], [-107.0, 37.75], [-106.47, 37.53], [-106.25, 37.0], [-106.47, 36.47], [-107.0, 36.25], [-107.25, 36.35], [-107.5, 36.25], [-108.03, 36.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.831191476437311}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.2300611077693695}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.4789827825300677, 3.337931977982805, 4.789440236059136, 2.5551056613945207, -0.12895702697176148]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.40983045479419, 11.394459324052775, 13.161281935781801, 6.832647905694159, 0.6145368704840166]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.786626564587798, 6.632738724756599, 8.38259360532169, 6.068474881093796, 6.156800106075906]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.002460286934706, 8.612280378313926, 10.831191476437311, 7.281295249859909, 6.442435173542265]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.567185907802892, 1.5653582393153613, 2.048755717279923, 1.5324558863171507, 1.4010944758021115]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.861943608384856, 1.885684225347958, 2.767373061198884, 1.6956403541353628, 1.4100515950323413]}}