{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:19.031332", "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": "2020-Aug-29_to_2020-Aug-31_193.0_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": 2020080002959}, "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": "August 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2020"}, "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": 206080.062957757}, "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.Pacific-Ocean", "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": 193.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "193.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 186.25}, "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": 56.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-174.03, 59.03], [-173.5, 59.25], [-173.25, 59.15], [-173.18, 59.18], [-173.03, 59.53], [-172.5, 59.75], [-172.25, 59.65], [-172.18, 59.68], [-172.03, 60.03], [-171.68, 60.18], [-171.53, 60.53], [-171.0, 60.75], [-170.75, 60.65], [-170.5, 60.75], [-170.25, 60.65], [-170.0, 60.75], [-169.75, 60.65], [-169.68, 60.68], [-169.54, 61.0], [-169.75, 61.5], [-169.65, 61.75], [-169.75, 62.0], [-169.53, 62.53], [-169.18, 62.68], [-169.03, 63.03], [-168.68, 63.18], [-168.65, 63.25], [-168.68, 63.32], [-169.03, 63.47], [-169.25, 64.0], [-169.15, 64.25], [-169.25, 64.5], [-169.03, 65.03], [-168.68, 65.18], [-168.53, 65.53], [-168.0, 65.75], [-167.75, 65.65], [-167.5, 65.75], [-166.97, 65.53], [-166.82, 65.18], [-166.75, 65.15], [-166.5, 65.25], [-165.97, 65.03], [-165.82, 64.68], [-165.75, 64.65], [-165.5, 64.75], [-165.25, 64.65], [-165.0, 64.75], [-164.75, 64.65], [-164.5, 64.75], [-164.25, 64.65], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.18, 64.68], [-163.03, 65.03], [-162.5, 65.25], [-162.25, 65.15], [-162.0, 65.25], [-161.75, 65.15], [-161.5, 65.25], [-161.25, 65.15], [-161.0, 65.25], [-160.47, 65.03], [-160.25, 64.5], [-160.47, 63.97], [-160.82, 63.82], [-160.97, 63.47], [-161.5, 63.25], [-161.75, 63.35], [-162.0, 63.25], [-162.25, 63.35], [-162.5, 63.25], [-162.75, 63.35], [-163.0, 63.25], [-163.25, 63.35], [-163.32, 63.32], [-163.47, 62.97], [-164.0, 62.75], [-164.25, 62.85], [-164.5, 62.75], [-164.75, 62.85], [-164.82, 62.82], [-164.97, 62.47], [-165.32, 62.32], [-165.47, 61.97], [-166.0, 61.75], [-166.25, 61.85], [-166.5, 61.75], [-166.75, 61.85], [-166.82, 61.82], [-166.85, 61.75], [-166.75, 61.5], [-166.85, 61.25], [-166.82, 61.18], [-166.47, 61.03], [-166.25, 60.5], [-166.35, 60.25], [-166.25, 60.0], [-166.35, 59.75], [-166.25, 59.5], [-166.46, 59.0], [-166.25, 58.5], [-166.35, 58.25], [-166.25, 58.0], [-166.35, 57.75], [-166.25, 57.5], [-166.47, 56.97], [-166.82, 56.82], [-166.97, 56.47], [-167.5, 56.25], [-167.75, 56.35], [-168.0, 56.25], [-168.25, 56.35], [-168.5, 56.25], [-168.75, 56.35], [-169.0, 56.25], [-169.25, 56.35], [-169.5, 56.25], [-170.03, 56.47], [-170.18, 56.82], [-170.25, 56.85], [-170.5, 56.75], [-170.75, 56.85], [-171.0, 56.75], [-171.25, 56.85], [-171.5, 56.75], [-171.75, 56.85], [-172.0, 56.75], [-172.25, 56.85], [-172.5, 56.75], [-173.03, 56.97], [-173.18, 57.32], [-173.25, 57.35], [-173.5, 57.25], [-174.03, 57.47], [-174.25, 58.0], [-174.15, 58.25], [-174.25, 58.5], [-174.03, 59.03]]]]}, "2020-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-174.03, 59.03], [-173.5, 59.25], [-173.25, 59.15], [-173.18, 59.18], [-173.03, 59.53], [-172.5, 59.75], [-172.25, 59.65], [-172.18, 59.68], [-172.03, 60.03], [-171.68, 60.18], [-171.53, 60.53], [-171.0, 60.75], [-170.75, 60.65], [-170.5, 60.75], [-170.25, 60.65], [-170.0, 60.75], [-169.75, 60.65], [-169.68, 60.68], [-169.54, 61.0], [-169.75, 61.5], [-169.65, 61.75], [-169.75, 62.0], [-169.53, 62.53], [-169.18, 62.68], [-169.03, 63.03], [-168.68, 63.18], [-168.65, 63.25], [-168.68, 63.32], [-169.03, 63.47], [-169.25, 64.0], [-169.15, 64.25], [-169.25, 64.5], [-169.03, 65.03], [-168.68, 65.18], [-168.53, 65.53], [-168.0, 65.75], [-167.75, 65.65], [-167.5, 65.75], [-166.97, 65.53], [-166.82, 65.18], [-166.75, 65.15], [-166.5, 65.25], [-165.97, 65.03], [-165.82, 64.68], [-165.75, 64.65], [-165.5, 64.75], [-165.25, 64.65], [-165.0, 64.75], [-164.75, 64.65], [-164.5, 64.75], [-164.25, 64.65], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.18, 64.68], [-163.03, 65.03], [-162.5, 65.25], [-162.25, 65.15], [-162.0, 65.25], [-161.75, 65.15], [-161.5, 65.25], [-161.25, 65.15], [-161.0, 65.25], [-160.47, 65.03], [-160.25, 64.5], [-160.47, 63.97], [-160.82, 63.82], [-160.97, 63.47], [-161.5, 63.25], [-161.75, 63.35], [-162.0, 63.25], [-162.25, 63.35], [-162.5, 63.25], [-162.75, 63.35], [-163.0, 63.25], [-163.25, 63.35], [-163.32, 63.32], [-163.47, 62.97], [-164.0, 62.75], [-164.25, 62.85], [-164.5, 62.75], [-164.75, 62.85], [-164.82, 62.82], [-164.97, 62.47], [-165.32, 62.32], [-165.47, 61.97], [-166.0, 61.75], [-166.25, 61.85], [-166.5, 61.75], [-166.75, 61.85], [-166.82, 61.82], [-166.85, 61.75], [-166.75, 61.5], [-166.85, 61.25], [-166.82, 61.18], [-166.47, 61.03], [-166.25, 60.5], [-166.35, 60.25], [-166.25, 60.0], [-166.35, 59.75], [-166.25, 59.5], [-166.46, 59.0], [-166.25, 58.5], [-166.35, 58.25], [-166.25, 58.0], [-166.35, 57.75], [-166.25, 57.5], [-166.47, 56.97], [-166.82, 56.82], [-166.97, 56.47], [-167.5, 56.25], [-167.75, 56.35], [-168.0, 56.25], [-168.25, 56.35], [-168.5, 56.25], [-168.75, 56.35], [-169.0, 56.25], [-169.25, 56.35], [-169.5, 56.25], [-170.03, 56.47], [-170.18, 56.82], [-170.25, 56.85], [-170.5, 56.75], [-170.75, 56.85], [-171.0, 56.75], [-171.25, 56.85], [-171.5, 56.75], [-171.75, 56.85], [-172.0, 56.75], [-172.25, 56.85], [-172.5, 56.75], [-173.03, 56.97], [-173.18, 57.32], [-173.25, 57.35], [-173.5, 57.25], [-174.03, 57.47], [-174.25, 58.0], [-174.15, 58.25], [-174.25, 58.5], [-174.03, 59.03]]]]}, "2020-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-174.03, 59.03], [-173.5, 59.25], [-173.25, 59.15], [-173.18, 59.18], [-173.03, 59.53], [-172.5, 59.75], [-172.25, 59.65], [-172.18, 59.68], [-172.03, 60.03], [-171.68, 60.18], [-171.53, 60.53], [-171.0, 60.75], [-170.75, 60.65], [-170.5, 60.75], [-170.25, 60.65], [-170.0, 60.75], [-169.75, 60.65], [-169.68, 60.68], [-169.54, 61.0], [-169.75, 61.5], [-169.65, 61.75], [-169.75, 62.0], [-169.53, 62.53], [-169.18, 62.68], [-169.03, 63.03], [-168.68, 63.18], [-168.65, 63.25], [-168.68, 63.32], [-169.03, 63.47], [-169.25, 64.0], [-169.15, 64.25], [-169.25, 64.5], [-169.03, 65.03], [-168.68, 65.18], [-168.53, 65.53], [-168.0, 65.75], [-167.75, 65.65], [-167.5, 65.75], [-166.97, 65.53], [-166.82, 65.18], [-166.75, 65.15], [-166.5, 65.25], [-165.97, 65.03], [-165.82, 64.68], [-165.75, 64.65], [-165.5, 64.75], [-165.25, 64.65], [-165.0, 64.75], [-164.75, 64.65], [-164.5, 64.75], [-164.25, 64.65], [-164.0, 64.75], [-163.75, 64.65], [-163.5, 64.75], [-163.25, 64.65], [-163.18, 64.68], [-163.03, 65.03], [-162.5, 65.25], [-162.25, 65.15], [-162.0, 65.25], [-161.75, 65.15], [-161.5, 65.25], [-161.25, 65.15], [-161.0, 65.25], [-160.47, 65.03], [-160.25, 64.5], [-160.47, 63.97], [-160.82, 63.82], [-160.97, 63.47], [-161.5, 63.25], [-161.75, 63.35], [-162.0, 63.25], [-162.25, 63.35], [-162.5, 63.25], [-162.75, 63.35], [-163.0, 63.25], [-163.25, 63.35], [-163.32, 63.32], [-163.47, 62.97], [-164.0, 62.75], [-164.25, 62.85], [-164.5, 62.75], [-164.75, 62.85], [-164.82, 62.82], [-164.97, 62.47], [-165.32, 62.32], [-165.47, 61.97], [-166.0, 61.75], [-166.25, 61.85], [-166.5, 61.75], [-166.75, 61.85], [-166.82, 61.82], [-166.85, 61.75], [-166.75, 61.5], [-166.85, 61.25], [-166.82, 61.18], [-166.47, 61.03], [-166.25, 60.5], [-166.35, 60.25], [-166.25, 60.0], [-166.35, 59.75], [-166.25, 59.5], [-166.46, 59.0], [-166.25, 58.5], [-166.35, 58.25], [-166.25, 58.0], [-166.35, 57.75], [-166.25, 57.5], [-166.47, 56.97], [-166.82, 56.82], [-166.97, 56.47], [-167.5, 56.25], [-167.75, 56.35], [-168.0, 56.25], [-168.25, 56.35], [-168.5, 56.25], [-168.75, 56.35], [-169.0, 56.25], [-169.25, 56.35], [-169.5, 56.25], [-170.03, 56.47], [-170.18, 56.82], [-170.25, 56.85], [-170.5, 56.75], [-170.75, 56.85], [-171.0, 56.75], [-171.25, 56.85], [-171.5, 56.75], [-171.75, 56.85], [-172.0, 56.75], [-172.25, 56.85], [-172.5, 56.75], [-173.03, 56.97], [-173.18, 57.32], [-173.25, 57.35], [-173.5, 57.25], [-174.03, 57.47], [-174.25, 58.0], [-174.15, 58.25], [-174.25, 58.5], [-174.03, 59.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.9151804861072037}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.450523697840539}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.781397073259768, 11.777674564458266, 11.625710694849602]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.34809247192419, 13.992665967291828, 14.019585942590254]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.4673526078209265, 2.4984818942045086, 2.3857365914961797]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.8231907867134396, 3.9151804861072037, 3.49660971146659]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6286724072345218, 1.6254003048488506, 1.5618651214625012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0245837887819067, 2.1257846829613314, 1.847210839532126]}}