{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:21:09.013167", "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": "2019-Dec-22_to_2019-Dec-24_247.0_40.0"}, "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": 2019120002212}, "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": "December 22 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 24 2019"}, "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": 63791.96955358148}, "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": ["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": 40.0}, "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": 247.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "247.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 245.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 248.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.53, 40.53], [-114.18, 40.68], [-114.03, 41.03], [-113.68, 41.18], [-113.65, 41.25], [-113.75, 41.5], [-113.54, 42.0], [-113.75, 42.5], [-113.53, 43.03], [-113.0, 43.25], [-112.75, 43.15], [-112.68, 43.18], [-112.53, 43.53], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.85, 42.25], [-111.75, 42.0], [-111.85, 41.75], [-111.82, 41.68], [-111.47, 41.53], [-111.25, 41.0], [-111.47, 40.47], [-111.82, 40.32], [-111.85, 40.25], [-111.75, 40.0], [-111.97, 39.47], [-112.32, 39.32], [-112.35, 39.25], [-112.32, 39.18], [-111.97, 39.03], [-111.75, 38.5], [-111.97, 37.97], [-112.37, 37.8], [-112.25, 37.5], [-112.47, 36.97], [-113.0, 36.75], [-113.53, 36.97], [-113.68, 37.32], [-114.03, 37.47], [-114.18, 37.82], [-114.25, 37.85], [-114.5, 37.75], [-115.03, 37.97], [-115.25, 38.5], [-115.03, 39.03], [-114.62, 39.2], [-114.75, 39.5], [-114.65, 39.75], [-114.75, 40.0], [-114.53, 40.53]]]]}, "2019-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.53, 40.53], [-114.18, 40.68], [-114.03, 41.03], [-113.68, 41.18], [-113.65, 41.25], [-113.75, 41.5], [-113.54, 42.0], [-113.75, 42.5], [-113.53, 43.03], [-113.0, 43.25], [-112.75, 43.15], [-112.68, 43.18], [-112.53, 43.53], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.85, 42.25], [-111.75, 42.0], [-111.85, 41.75], [-111.82, 41.68], [-111.47, 41.53], [-111.25, 41.0], [-111.47, 40.47], [-111.82, 40.32], [-111.85, 40.25], [-111.75, 40.0], [-111.97, 39.47], [-112.32, 39.32], [-112.35, 39.25], [-112.32, 39.18], [-111.97, 39.03], [-111.75, 38.5], [-111.97, 37.97], [-112.37, 37.8], [-112.25, 37.5], [-112.47, 36.97], [-113.0, 36.75], [-113.53, 36.97], [-113.68, 37.32], [-114.03, 37.47], [-114.18, 37.82], [-114.25, 37.85], [-114.5, 37.75], [-115.03, 37.97], [-115.25, 38.5], [-115.03, 39.03], [-114.62, 39.2], [-114.75, 39.5], [-114.65, 39.75], [-114.75, 40.0], [-114.53, 40.53]]]]}, "2019-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.53, 40.53], [-114.18, 40.68], [-114.03, 41.03], [-113.68, 41.18], [-113.65, 41.25], [-113.75, 41.5], [-113.54, 42.0], [-113.75, 42.5], [-113.53, 43.03], [-113.0, 43.25], [-112.75, 43.15], [-112.68, 43.18], [-112.53, 43.53], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.85, 42.25], [-111.75, 42.0], [-111.85, 41.75], [-111.82, 41.68], [-111.47, 41.53], [-111.25, 41.0], [-111.47, 40.47], [-111.82, 40.32], [-111.85, 40.25], [-111.75, 40.0], [-111.97, 39.47], [-112.32, 39.32], [-112.35, 39.25], [-112.32, 39.18], [-111.97, 39.03], [-111.75, 38.5], [-111.97, 37.97], [-112.37, 37.8], [-112.25, 37.5], [-112.47, 36.97], [-113.0, 36.75], [-113.53, 36.97], [-113.68, 37.32], [-114.03, 37.47], [-114.18, 37.82], [-114.25, 37.85], [-114.5, 37.75], [-115.03, 37.97], [-115.25, 38.5], [-115.03, 39.03], [-114.62, 39.2], [-114.75, 39.5], [-114.65, 39.75], [-114.75, 40.0], [-114.53, 40.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.90272116434653}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.909863783112317}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.5436153214243404, 3.6508329711096508, 3.768297243881193]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.995746139077767, 7.632945217943529, 7.501552094830629]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.619694632352957, 6.9060167463300735, 7.203879970653925]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.90272116434653, 8.543387492782585, 8.850328600575438]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5477834216121928, 1.6128190061046075, 1.6987532502105855]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.044587002931975, 2.01905604828329, 2.170769211149119]}}