{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:51.777389", "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": "2017-May-04_to_2017-May-06_250.5_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": 2017050001262}, "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": "May 04 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 2017"}, "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": 59763.449300732325}, "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.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": 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": 250.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "250.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 248.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.25}, "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": 57.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.53, 57.03], [-111.18, 57.18], [-111.03, 57.53], [-110.5, 57.75], [-110.25, 57.65], [-110.0, 57.75], [-109.75, 57.65], [-109.5, 57.75], [-108.97, 57.53], [-108.82, 57.18], [-108.47, 57.03], [-108.3, 56.63], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-106.97, 56.03], [-106.82, 55.68], [-106.75, 55.65], [-106.5, 55.75], [-105.97, 55.53], [-105.82, 55.18], [-105.47, 55.03], [-105.25, 54.5], [-105.47, 53.97], [-106.0, 53.75], [-106.25, 53.85], [-106.5, 53.75], [-106.75, 53.85], [-106.82, 53.82], [-106.97, 53.47], [-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], [-110.68, 55.32], [-110.75, 55.35], [-111.0, 55.25], [-111.53, 55.47], [-111.75, 56.0], [-111.65, 56.25], [-111.75, 56.5], [-111.53, 57.03]]]]}, "2017-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.53, 57.03], [-111.18, 57.18], [-111.03, 57.53], [-110.5, 57.75], [-110.25, 57.65], [-110.0, 57.75], [-109.75, 57.65], [-109.5, 57.75], [-108.97, 57.53], [-108.82, 57.18], [-108.47, 57.03], [-108.3, 56.63], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-106.97, 56.03], [-106.82, 55.68], [-106.75, 55.65], [-106.5, 55.75], [-105.97, 55.53], [-105.82, 55.18], [-105.47, 55.03], [-105.25, 54.5], [-105.47, 53.97], [-106.0, 53.75], [-106.25, 53.85], [-106.5, 53.75], [-106.75, 53.85], [-106.82, 53.82], [-106.97, 53.47], [-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], [-110.68, 55.32], [-110.75, 55.35], [-111.0, 55.25], [-111.53, 55.47], [-111.75, 56.0], [-111.65, 56.25], [-111.75, 56.5], [-111.53, 57.03]]]]}, "2017-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.53, 57.03], [-111.18, 57.18], [-111.03, 57.53], [-110.5, 57.75], [-110.25, 57.65], [-110.0, 57.75], [-109.75, 57.65], [-109.5, 57.75], [-108.97, 57.53], [-108.82, 57.18], [-108.47, 57.03], [-108.3, 56.63], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-106.97, 56.03], [-106.82, 55.68], [-106.75, 55.65], [-106.5, 55.75], [-105.97, 55.53], [-105.82, 55.18], [-105.47, 55.03], [-105.25, 54.5], [-105.47, 53.97], [-106.0, 53.75], [-106.25, 53.85], [-106.5, 53.75], [-106.75, 53.85], [-106.82, 53.82], [-106.97, 53.47], [-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], [-110.68, 55.32], [-110.75, 55.35], [-111.0, 55.25], [-111.53, 55.47], [-111.75, 56.0], [-111.65, 56.25], [-111.75, 56.5], [-111.53, 57.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.61137790311841}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.716946738746052}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.32905865752889, 15.304553366715197, 16.346845563539034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.1397167174959, 17.537581932081082, 20.369873787962263]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.909198824857849, 7.684102946907568, 8.557538444472742]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.195927059135045, 9.019455176476413, 11.61137790311841]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4093875068044281, 1.5889427019297362, 1.7507833483385906]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.575529962016463, 1.9299284771254899, 2.5265171503244725]}}