{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:16.107358", "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": "2022-Nov-17_to_2022-Nov-19_198.0_63.0"}, "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": 2022110002262}, "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": "November 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 19 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 51234.733739132294}, "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": ["N.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": ["Bering Sea"]}, "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": 63.0}, "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": 198.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "198.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 194.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 199.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-166.03, 62.53], [-165.68, 62.68], [-165.65, 62.75], [-165.75, 63.0], [-165.53, 63.53], [-165.0, 63.75], [-164.75, 63.65], [-164.62, 63.7], [-164.75, 64.0], [-164.53, 64.53], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.0, 64.75], [-162.47, 64.53], [-162.32, 64.18], [-162.25, 64.15], [-162.0, 64.25], [-161.75, 64.15], [-161.5, 64.25], [-161.25, 64.15], [-161.0, 64.25], [-160.47, 64.03], [-160.25, 63.5], [-160.47, 62.97], [-161.0, 62.75], [-160.47, 62.53], [-160.25, 62.0], [-160.47, 61.47], [-161.0, 61.25], [-161.25, 61.35], [-161.5, 61.25], [-161.75, 61.35], [-162.0, 61.25], [-162.25, 61.35], [-162.5, 61.25], [-162.75, 61.35], [-162.82, 61.32], [-162.97, 60.97], [-163.5, 60.75], [-163.75, 60.85], [-164.0, 60.75], [-164.25, 60.85], [-164.5, 60.75], [-164.75, 60.85], [-165.0, 60.75], [-165.25, 60.85], [-165.5, 60.75], [-166.03, 60.97], [-166.25, 61.5], [-166.15, 61.75], [-166.25, 62.0], [-166.03, 62.53]], [[-161.25, 62.85], [-161.32, 62.82], [-161.37, 62.7], [-161.25, 62.65], [-161.0, 62.75], [-161.25, 62.85]]]]}, "2022-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-166.03, 62.53], [-165.68, 62.68], [-165.65, 62.75], [-165.75, 63.0], [-165.53, 63.53], [-165.0, 63.75], [-164.75, 63.65], [-164.62, 63.7], [-164.75, 64.0], [-164.53, 64.53], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.0, 64.75], [-162.47, 64.53], [-162.32, 64.18], [-162.25, 64.15], [-162.0, 64.25], [-161.75, 64.15], [-161.5, 64.25], [-161.25, 64.15], [-161.0, 64.25], [-160.47, 64.03], [-160.25, 63.5], [-160.47, 62.97], [-161.0, 62.75], [-160.47, 62.53], [-160.25, 62.0], [-160.47, 61.47], [-161.0, 61.25], [-161.25, 61.35], [-161.5, 61.25], [-161.75, 61.35], [-162.0, 61.25], [-162.25, 61.35], [-162.5, 61.25], [-162.75, 61.35], [-162.82, 61.32], [-162.97, 60.97], [-163.5, 60.75], [-163.75, 60.85], [-164.0, 60.75], [-164.25, 60.85], [-164.5, 60.75], [-164.75, 60.85], [-165.0, 60.75], [-165.25, 60.85], [-165.5, 60.75], [-166.03, 60.97], [-166.25, 61.5], [-166.15, 61.75], [-166.25, 62.0], [-166.03, 62.53]], [[-161.25, 62.85], [-161.32, 62.82], [-161.37, 62.7], [-161.25, 62.65], [-161.0, 62.75], [-161.25, 62.85]]]]}, "2022-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-166.03, 62.53], [-165.68, 62.68], [-165.65, 62.75], [-165.75, 63.0], [-165.53, 63.53], [-165.0, 63.75], [-164.75, 63.65], [-164.62, 63.7], [-164.75, 64.0], [-164.53, 64.53], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.0, 64.75], [-162.47, 64.53], [-162.32, 64.18], [-162.25, 64.15], [-162.0, 64.25], [-161.75, 64.15], [-161.5, 64.25], [-161.25, 64.15], [-161.0, 64.25], [-160.47, 64.03], [-160.25, 63.5], [-160.47, 62.97], [-161.0, 62.75], [-160.47, 62.53], [-160.25, 62.0], [-160.47, 61.47], [-161.0, 61.25], [-161.25, 61.35], [-161.5, 61.25], [-161.75, 61.35], [-162.0, 61.25], [-162.25, 61.35], [-162.5, 61.25], [-162.75, 61.35], [-162.82, 61.32], [-162.97, 60.97], [-163.5, 60.75], [-163.75, 60.85], [-164.0, 60.75], [-164.25, 60.85], [-164.5, 60.75], [-164.75, 60.85], [-165.0, 60.75], [-165.25, 60.85], [-165.5, 60.75], [-166.03, 60.97], [-166.25, 61.5], [-166.15, 61.75], [-166.25, 62.0], [-166.03, 62.53]], [[-161.25, 62.85], [-161.32, 62.82], [-161.37, 62.7], [-161.25, 62.65], [-161.0, 62.75], [-161.25, 62.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.411391690683843}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.043479055910613}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.2066250109038492, 1.6697205409301432, 0.5672122701576541]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.4009918784749402, 2.1304831768606505, 1.1453383848200929]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.68420645506442, 9.5645624627644, 8.881668249903008]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.939001285896381, 12.411391690683843, 11.781116936690239]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.540124333299344, 1.6728883664811023, 1.5310289399025345]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6431006947434676, 1.9533791809847239, 1.8832688406378841]}}