{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:22.972868", "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": "2016-Sep-27_to_2016-Sep-30_243.5_47.5"}, "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": 2016090002758}, "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": "September 27 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 2016"}, "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": 66209.41098366393}, "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": 47.5}, "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": 243.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "243.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 242.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 247.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.25, 47.0], [-117.15, 47.25], [-117.25, 47.5], [-117.03, 48.03], [-116.5, 48.25], [-116.25, 48.15], [-116.0, 48.25], [-115.75, 48.15], [-115.5, 48.25], [-115.0, 48.04], [-114.5, 48.25], [-113.97, 48.03], [-113.75, 47.5], [-113.85, 47.25], [-113.75, 47.0], [-113.85, 46.75], [-113.82, 46.68], [-113.75, 46.65], [-113.5, 46.75], [-112.97, 46.53], [-112.75, 46.0], [-112.97, 45.47], [-113.5, 45.25], [-113.75, 45.35], [-113.82, 45.32], [-113.97, 44.97], [-114.5, 44.75], [-114.75, 44.85], [-115.0, 44.75], [-115.53, 44.97], [-115.68, 45.32], [-115.75, 45.35], [-116.0, 45.25], [-116.25, 45.35], [-116.5, 45.25], [-116.8, 45.38], [-116.97, 44.97], [-117.5, 44.75], [-118.03, 44.97], [-118.25, 45.5], [-118.03, 46.03], [-117.5, 46.25], [-117.2, 46.13], [-117.04, 46.5], [-117.25, 47.0]]]]}, "2016-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.25, 45.5], [-118.03, 46.03], [-117.68, 46.18], [-117.53, 46.53], [-117.12, 46.7], [-117.25, 47.0], [-117.15, 47.25], [-117.25, 47.5], [-117.03, 48.03], [-116.5, 48.25], [-116.25, 48.15], [-116.0, 48.25], [-115.75, 48.15], [-115.5, 48.25], [-115.0, 48.04], [-114.5, 48.25], [-113.97, 48.03], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.47, 47.03], [-113.32, 46.68], [-113.25, 46.65], [-113.0, 46.75], [-112.47, 46.53], [-112.25, 46.0], [-112.47, 45.47], [-113.0, 45.25], [-113.25, 45.35], [-113.5, 45.25], [-113.75, 45.35], [-113.82, 45.32], [-113.97, 44.97], [-114.5, 44.75], [-114.75, 44.85], [-115.0, 44.75], [-115.25, 44.85], [-115.5, 44.75], [-115.75, 44.85], [-116.0, 44.75], [-116.25, 44.85], [-116.32, 44.82], [-116.47, 44.47], [-117.0, 44.25], [-117.53, 44.47], [-117.68, 44.82], [-118.03, 44.97], [-118.25, 45.5]]]]}, "2016-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.25, 45.5], [-118.03, 46.03], [-117.68, 46.18], [-117.53, 46.53], [-117.12, 46.7], [-117.25, 47.0], [-117.15, 47.25], [-117.25, 47.5], [-117.03, 48.03], [-116.5, 48.25], [-116.25, 48.15], [-116.0, 48.25], [-115.75, 48.15], [-115.5, 48.25], [-115.0, 48.04], [-114.5, 48.25], [-113.97, 48.03], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.47, 47.03], [-113.32, 46.68], [-113.25, 46.65], [-113.0, 46.75], [-112.47, 46.53], [-112.25, 46.0], [-112.47, 45.47], [-113.0, 45.25], [-113.25, 45.35], [-113.5, 45.25], [-113.75, 45.35], [-113.82, 45.32], [-113.97, 44.97], [-114.5, 44.75], [-114.75, 44.85], [-115.0, 44.75], [-115.25, 44.85], [-115.5, 44.75], [-115.75, 44.85], [-116.0, 44.75], [-116.25, 44.85], [-116.32, 44.82], [-116.47, 44.47], [-117.0, 44.25], [-117.53, 44.47], [-117.68, 44.82], [-118.03, 44.97], [-118.25, 45.5]]]]}, "2016-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.65, 45.75], [-117.75, 46.0], [-117.53, 46.53], [-117.12, 46.7], [-117.25, 47.0], [-117.15, 47.25], [-117.25, 47.5], [-117.03, 48.03], [-116.5, 48.25], [-116.25, 48.15], [-116.0, 48.25], [-115.75, 48.15], [-115.5, 48.25], [-115.0, 48.04], [-114.5, 48.25], [-113.97, 48.03], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.47, 47.03], [-113.32, 46.68], [-113.25, 46.65], [-113.0, 46.75], [-112.47, 46.53], [-112.25, 46.0], [-112.47, 45.47], [-113.0, 45.25], [-113.25, 45.35], [-113.5, 45.25], [-113.75, 45.35], [-114.0, 45.25], [-114.25, 45.35], [-114.32, 45.32], [-114.47, 44.97], [-115.0, 44.75], [-115.25, 44.85], [-115.5, 44.75], [-115.75, 44.85], [-116.0, 44.75], [-116.25, 44.85], [-116.32, 44.82], [-116.47, 44.47], [-117.0, 44.25], [-117.53, 44.47], [-117.75, 45.0], [-117.65, 45.25], [-117.75, 45.5], [-117.65, 45.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.328192428607906}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.541317046293904}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.270633485663666, 16.133408531658517, 16.235744639680377, 16.260192663514374]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.909858943247684, 19.50815703476269, 19.603808288454275, 19.562945939449264]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.129560427407477, 5.208871922091486, 5.664197676189091, 6.091899858635705]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.034489682653373, 6.094978148681037, 7.328192428607906, 7.01851482430925]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.343013184027217, 1.3277067460068386, 1.3998636370504913, 1.4908808369359465]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6542433170315936, 1.5036091445388668, 1.79280325535646, 1.7267698424326607]}}