{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:44.699263", "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": "2015-Aug-28_to_2015-Aug-30_252.0_55.0"}, "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": 2015080002858}, "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 28 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 2015"}, "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": 57394.10734900288}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America", "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": []}, "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": 55.0}, "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": 252.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "252.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 249.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 256.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 56.03], [-110.0, 56.25], [-109.47, 56.03], [-109.32, 55.68], [-109.25, 55.65], [-109.18, 55.68], [-109.03, 56.03], [-108.5, 56.25], [-107.97, 56.03], [-107.82, 55.68], [-107.75, 55.65], [-107.5, 55.75], [-107.25, 55.65], [-107.0, 55.75], [-106.5, 55.54], [-106.0, 55.75], [-105.75, 55.65], [-105.5, 55.75], [-104.97, 55.53], [-104.82, 55.18], [-104.75, 55.15], [-104.5, 55.25], [-104.25, 55.15], [-104.0, 55.25], [-103.47, 55.03], [-103.25, 54.5], [-103.35, 54.25], [-103.25, 54.0], [-103.47, 53.47], [-104.0, 53.25], [-104.25, 53.35], [-104.5, 53.25], [-104.75, 53.35], [-105.0, 53.25], [-105.25, 53.35], [-105.5, 53.25], [-105.75, 53.35], [-106.0, 53.25], [-106.25, 53.35], [-106.5, 53.25], [-107.0, 53.46], [-107.5, 53.25], [-107.75, 53.35], [-108.0, 53.25], [-108.25, 53.35], [-108.5, 53.25], [-108.75, 53.35], [-109.0, 53.25], [-109.25, 53.35], [-109.5, 53.25], [-110.03, 53.47], [-110.25, 54.0], [-110.12, 54.3], [-110.53, 54.47], [-110.75, 55.0], [-110.65, 55.25], [-110.75, 55.5], [-110.53, 56.03]]]]}, "2015-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 56.03], [-110.0, 56.25], [-109.47, 56.03], [-109.32, 55.68], [-109.25, 55.65], [-109.18, 55.68], [-109.03, 56.03], [-108.5, 56.25], [-107.97, 56.03], [-107.82, 55.68], [-107.75, 55.65], [-107.5, 55.75], [-107.25, 55.65], [-107.0, 55.75], [-106.5, 55.54], [-106.0, 55.75], [-105.75, 55.65], [-105.5, 55.75], [-104.97, 55.53], [-104.82, 55.18], [-104.75, 55.15], [-104.5, 55.25], [-104.25, 55.15], [-104.0, 55.25], [-103.47, 55.03], [-103.25, 54.5], [-103.35, 54.25], [-103.25, 54.0], [-103.47, 53.47], [-104.0, 53.25], [-104.25, 53.35], [-104.5, 53.25], [-104.75, 53.35], [-105.0, 53.25], [-105.25, 53.35], [-105.5, 53.25], [-105.75, 53.35], [-106.0, 53.25], [-106.25, 53.35], [-106.5, 53.25], [-107.0, 53.46], [-107.5, 53.25], [-107.75, 53.35], [-108.0, 53.25], [-108.25, 53.35], [-108.5, 53.25], [-108.75, 53.35], [-109.0, 53.25], [-109.25, 53.35], [-109.5, 53.25], [-110.03, 53.47], [-110.25, 54.0], [-110.12, 54.3], [-110.53, 54.47], [-110.75, 55.0], [-110.65, 55.25], [-110.75, 55.5], [-110.53, 56.03]]]]}, "2015-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 56.03], [-110.0, 56.25], [-109.47, 56.03], [-109.32, 55.68], [-109.25, 55.65], [-109.18, 55.68], [-109.03, 56.03], [-108.5, 56.25], [-107.97, 56.03], [-107.82, 55.68], [-107.75, 55.65], [-107.5, 55.75], [-107.25, 55.65], [-107.0, 55.75], [-106.5, 55.54], [-106.0, 55.75], [-105.75, 55.65], [-105.5, 55.75], [-104.97, 55.53], [-104.82, 55.18], [-104.75, 55.15], [-104.5, 55.25], [-104.25, 55.15], [-104.0, 55.25], [-103.47, 55.03], [-103.25, 54.5], [-103.35, 54.25], [-103.25, 54.0], [-103.47, 53.47], [-104.0, 53.25], [-104.25, 53.35], [-104.5, 53.25], [-104.75, 53.35], [-105.0, 53.25], [-105.25, 53.35], [-105.5, 53.25], [-105.75, 53.35], [-106.0, 53.25], [-106.25, 53.35], [-106.5, 53.25], [-107.0, 53.46], [-107.5, 53.25], [-107.75, 53.35], [-108.0, 53.25], [-108.25, 53.35], [-108.5, 53.25], [-108.75, 53.35], [-109.0, 53.25], [-109.25, 53.35], [-109.5, 53.25], [-110.03, 53.47], [-110.25, 54.0], [-110.12, 54.3], [-110.53, 54.47], [-110.75, 55.0], [-110.65, 55.25], [-110.75, 55.5], [-110.53, 56.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.780907518013294}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.27242110541413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.5332579600842, 19.961139364465453, 19.75356350459498]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.250605424477556, 21.408354392633953, 20.890762638151898]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.891361399405074, 5.506290850265552, 5.419611066571765]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.476998518280823, 6.780907518013294, 6.233997844009764]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4671051560854311, 1.646072537203056, 1.6405490392766933]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6029434343697433, 1.9645656377776055, 1.8634963132649867]}}