{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:55.506577", "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-Jan-04_to_2010-Jan-07_193.0_54.0"}, "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": 2010010001440}, "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 04 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 07 2010"}, "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": 79541.29480564834}, "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", "North Pacific Ocean"]}, "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": 54.0}, "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": 189.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 194.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-167.53, 54.53], [-167.0, 54.75], [-166.75, 54.65], [-166.5, 54.75], [-165.97, 54.53], [-165.75, 54.0], [-165.97, 53.47], [-166.32, 53.32], [-166.47, 52.97], [-167.0, 52.75], [-167.53, 52.97], [-167.75, 53.5], [-167.65, 53.75], [-167.75, 54.0], [-167.53, 54.53]]]]}, "2010-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-170.75, 52.5], [-170.53, 53.03], [-170.0, 53.25], [-169.7, 53.13], [-169.65, 53.25], [-169.75, 53.5], [-169.53, 54.03], [-169.12, 54.2], [-169.25, 54.5], [-169.03, 55.03], [-168.68, 55.18], [-168.53, 55.53], [-168.0, 55.75], [-167.75, 55.65], [-167.5, 55.75], [-167.25, 55.65], [-167.0, 55.75], [-166.75, 55.65], [-166.5, 55.75], [-166.25, 55.65], [-166.0, 55.75], [-165.75, 55.65], [-165.5, 55.75], [-164.97, 55.53], [-164.75, 55.0], [-164.96, 54.5], [-164.75, 54.0], [-164.97, 53.47], [-165.5, 53.25], [-165.75, 53.35], [-165.82, 53.32], [-165.97, 52.97], [-166.32, 52.82], [-166.47, 52.47], [-166.87, 52.3], [-166.75, 52.0], [-166.97, 51.47], [-167.5, 51.25], [-167.75, 51.35], [-168.0, 51.25], [-168.25, 51.35], [-168.32, 51.32], [-168.35, 51.25], [-168.25, 51.0], [-168.47, 50.47], [-169.0, 50.25], [-169.25, 50.35], [-169.5, 50.25], [-170.03, 50.47], [-170.18, 50.82], [-170.25, 50.85], [-170.5, 50.75], [-171.03, 50.97], [-171.25, 51.5], [-171.03, 52.03], [-170.68, 52.18], [-170.65, 52.25], [-170.75, 52.5]]]]}, "2010-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-170.75, 52.5], [-170.53, 53.03], [-170.0, 53.25], [-169.7, 53.13], [-169.65, 53.25], [-169.75, 53.5], [-169.53, 54.03], [-169.12, 54.2], [-169.25, 54.5], [-169.03, 55.03], [-168.68, 55.18], [-168.53, 55.53], [-168.0, 55.75], [-167.75, 55.65], [-167.5, 55.75], [-167.25, 55.65], [-167.0, 55.75], [-166.75, 55.65], [-166.5, 55.75], [-166.25, 55.65], [-166.0, 55.75], [-165.75, 55.65], [-165.5, 55.75], [-164.97, 55.53], [-164.75, 55.0], [-164.96, 54.5], [-164.75, 54.0], [-164.97, 53.47], [-165.5, 53.25], [-165.75, 53.35], [-165.82, 53.32], [-165.97, 52.97], [-166.32, 52.82], [-166.47, 52.47], [-166.87, 52.3], [-166.75, 52.0], [-166.97, 51.47], [-167.5, 51.25], [-167.75, 51.35], [-168.0, 51.25], [-168.25, 51.35], [-168.32, 51.32], [-168.35, 51.25], [-168.25, 51.0], [-168.47, 50.47], [-169.0, 50.25], [-169.25, 50.35], [-169.5, 50.25], [-170.03, 50.47], [-170.18, 50.82], [-170.25, 50.85], [-170.5, 50.75], [-171.03, 50.97], [-171.25, 51.5], [-171.03, 52.03], [-170.68, 52.18], [-170.65, 52.25], [-170.75, 52.5]]]]}, "2010-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-170.75, 52.5], [-170.53, 53.03], [-170.0, 53.25], [-169.7, 53.13], [-169.65, 53.25], [-169.75, 53.5], [-169.53, 54.03], [-169.12, 54.2], [-169.25, 54.5], [-169.03, 55.03], [-168.68, 55.18], [-168.53, 55.53], [-168.0, 55.75], [-167.75, 55.65], [-167.5, 55.75], [-167.25, 55.65], [-167.0, 55.75], [-166.75, 55.65], [-166.5, 55.75], [-166.25, 55.65], [-166.0, 55.75], [-165.75, 55.65], [-165.5, 55.75], [-164.97, 55.53], [-164.75, 55.0], [-164.96, 54.5], [-164.75, 54.0], [-164.97, 53.47], [-165.5, 53.25], [-165.75, 53.35], [-165.82, 53.32], [-165.97, 52.97], [-166.32, 52.82], [-166.47, 52.47], [-166.87, 52.3], [-166.75, 52.0], [-166.97, 51.47], [-167.5, 51.25], [-167.75, 51.35], [-168.0, 51.25], [-168.25, 51.35], [-168.32, 51.32], [-168.35, 51.25], [-168.25, 51.0], [-168.47, 50.47], [-169.0, 50.25], [-169.25, 50.35], [-169.5, 50.25], [-170.03, 50.47], [-170.18, 50.82], [-170.25, 50.85], [-170.5, 50.75], [-171.03, 50.97], [-171.25, 51.5], [-171.03, 52.03], [-170.68, 52.18], [-170.65, 52.25], [-170.75, 52.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.149073076268451}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7838757894595734}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.2460207734146707, 4.601075846930257, 4.574622255369377, 4.425983301669078]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.5821263157974954, 4.959201841395327, 4.988732423285171, 4.893080492520141]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7646182710231906, 2.82389012737341, 2.837777421976785, 2.617670690097051]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.230770825039031, 4.694121091509032, 5.149073076268451, 3.5438529256772995]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2303484078014473, 1.1565883664536638, 1.1307121665832502, 1.042487674902753]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3085392635239756, 1.4378118946710843, 1.5437157397886085, 1.1560824720815668]}}