{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:42.083171", "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-Nov-18_to_2016-Nov-23_243.5_72.5"}, "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": 2016110002258}, "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": "November 18 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 120000.04796664364}, "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": ["The Northwestern Passages"]}, "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": 72.5}, "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": 235.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 246.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 74.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.75, 70.0], [-122.53, 70.53], [-122.0, 70.75], [-121.75, 70.65], [-121.5, 70.75], [-120.97, 70.53], [-120.75, 70.0], [-120.97, 69.47], [-121.5, 69.25], [-121.75, 69.35], [-122.0, 69.25], [-122.53, 69.47], [-122.75, 70.0]]], [[[-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.47, 73.03], [-113.25, 72.5], [-113.47, 71.97], [-114.0, 71.75], [-114.25, 71.85], [-114.5, 71.75], [-114.75, 71.85], [-115.0, 71.75], [-115.25, 71.85], [-115.5, 71.75], [-116.03, 71.97], [-116.25, 72.5], [-116.03, 73.03], [-115.68, 73.18], [-115.53, 73.53], [-115.0, 73.75], [-114.47, 73.53]]]]}, "2016-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.75, 70.0], [-122.53, 70.53], [-122.0, 70.75], [-121.75, 70.65], [-121.5, 70.75], [-120.97, 70.53], [-120.75, 70.0], [-120.97, 69.47], [-121.5, 69.25], [-121.75, 69.35], [-122.0, 69.25], [-122.53, 69.47], [-122.75, 70.0]]], [[[-124.75, 73.5], [-124.53, 74.03], [-124.0, 74.25], [-123.75, 74.15], [-123.68, 74.18], [-123.53, 74.53], [-123.0, 74.75], [-122.75, 74.65], [-122.5, 74.75], [-122.25, 74.65], [-122.0, 74.75], [-121.75, 74.65], [-121.5, 74.75], [-121.25, 74.65], [-121.0, 74.75], [-120.75, 74.65], [-120.5, 74.75], [-120.25, 74.65], [-120.18, 74.68], [-120.03, 75.03], [-119.5, 75.25], [-119.25, 75.15], [-119.0, 75.25], [-118.75, 75.15], [-118.5, 75.25], [-118.25, 75.15], [-118.0, 75.25], [-117.75, 75.15], [-117.5, 75.25], [-117.25, 75.15], [-117.0, 75.25], [-116.75, 75.15], [-116.5, 75.25], [-115.97, 75.03], [-115.82, 74.68], [-115.75, 74.65], [-115.5, 74.75], [-114.97, 74.53], [-114.75, 74.0], [-114.85, 73.75], [-114.82, 73.68], [-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.47, 73.03], [-113.25, 72.5], [-113.47, 71.97], [-114.0, 71.75], [-114.25, 71.85], [-114.5, 71.75], [-114.75, 71.85], [-115.0, 71.75], [-115.25, 71.85], [-115.5, 71.75], [-115.75, 71.85], [-116.0, 71.75], [-116.25, 71.85], [-116.5, 71.75], [-117.03, 71.97], [-117.25, 72.5], [-117.12, 72.8], [-117.25, 72.85], [-117.32, 72.82], [-117.47, 72.47], [-118.0, 72.25], [-118.25, 72.35], [-118.5, 72.25], [-118.75, 72.35], [-119.0, 72.25], [-119.25, 72.35], [-119.5, 72.25], [-119.75, 72.35], [-120.0, 72.25], [-120.25, 72.35], [-120.5, 72.25], [-120.75, 72.35], [-121.0, 72.25], [-121.25, 72.35], [-121.5, 72.25], [-121.75, 72.35], [-122.0, 72.25], [-122.53, 72.47], [-122.68, 72.82], [-122.75, 72.85], [-123.0, 72.75], [-123.25, 72.85], [-123.5, 72.75], [-123.75, 72.85], [-124.0, 72.75], [-124.53, 72.97], [-124.75, 73.5]]]]}, "2016-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.25, 71.0], [-125.03, 71.53], [-124.68, 71.68], [-124.53, 72.03], [-124.0, 72.25], [-123.75, 72.15], [-123.5, 72.25], [-122.97, 72.03], [-122.82, 71.68], [-122.75, 71.65], [-122.5, 71.75], [-122.25, 71.65], [-122.0, 71.75], [-121.75, 71.65], [-121.5, 71.75], [-121.25, 71.65], [-121.0, 71.75], [-120.75, 71.65], [-120.68, 71.68], [-120.53, 72.03], [-120.18, 72.18], [-120.12, 72.3], [-120.25, 72.35], [-120.5, 72.25], [-120.75, 72.35], [-121.0, 72.25], [-121.25, 72.35], [-121.5, 72.25], [-121.75, 72.35], [-122.0, 72.25], [-122.53, 72.47], [-122.68, 72.82], [-122.75, 72.85], [-123.0, 72.75], [-123.25, 72.85], [-123.5, 72.75], [-123.75, 72.85], [-124.0, 72.75], [-124.53, 72.97], [-124.75, 73.5], [-124.53, 74.03], [-124.0, 74.25], [-123.75, 74.15], [-123.68, 74.18], [-123.53, 74.53], [-123.0, 74.75], [-122.75, 74.65], [-122.5, 74.75], [-122.25, 74.65], [-122.0, 74.75], [-121.75, 74.65], [-121.5, 74.75], [-121.25, 74.65], [-121.0, 74.75], [-120.75, 74.65], [-120.5, 74.75], [-120.25, 74.65], [-120.18, 74.68], [-120.03, 75.03], [-119.5, 75.25], [-119.25, 75.15], [-119.0, 75.25], [-118.75, 75.15], [-118.5, 75.25], [-118.25, 75.15], [-118.0, 75.25], [-117.75, 75.15], [-117.5, 75.25], [-117.25, 75.15], [-117.0, 75.25], [-116.75, 75.15], [-116.5, 75.25], [-115.97, 75.03], [-115.82, 74.68], [-115.75, 74.65], [-115.5, 74.75], [-114.97, 74.53], [-114.75, 74.0], [-114.85, 73.75], [-114.82, 73.68], [-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.47, 73.03], [-113.25, 72.5], [-113.35, 72.25], [-113.25, 72.0], [-113.47, 71.47], [-113.87, 71.3], [-113.75, 71.0], [-113.97, 70.47], [-114.5, 70.25], [-114.75, 70.35], [-115.0, 70.25], [-115.25, 70.35], [-115.5, 70.25], [-115.75, 70.35], [-116.0, 70.25], [-116.25, 70.35], [-116.5, 70.25], [-116.75, 70.35], [-117.0, 70.25], [-117.25, 70.35], [-117.32, 70.32], [-117.47, 69.97], [-118.0, 69.75], [-118.25, 69.85], [-118.5, 69.75], [-118.75, 69.85], [-119.0, 69.75], [-119.25, 69.85], [-119.5, 69.75], [-119.75, 69.85], [-120.0, 69.75], [-120.25, 69.85], [-120.32, 69.82], [-120.47, 69.47], [-121.0, 69.25], [-121.25, 69.35], [-121.5, 69.25], [-121.75, 69.35], [-122.0, 69.25], [-122.53, 69.47], [-122.68, 69.82], [-122.75, 69.85], [-123.0, 69.75], [-123.25, 69.85], [-123.5, 69.75], [-123.75, 69.85], [-124.0, 69.75], [-124.53, 69.97], [-124.68, 70.32], [-125.03, 70.47], [-125.25, 71.0]]]]}, "2016-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.25, 71.0], [-125.03, 71.53], [-124.68, 71.68], [-124.53, 72.03], [-124.0, 72.25], [-123.75, 72.15], [-123.5, 72.25], [-122.97, 72.03], [-122.82, 71.68], [-122.75, 71.65], [-122.5, 71.75], [-122.25, 71.65], [-122.0, 71.75], [-121.75, 71.65], [-121.5, 71.75], [-121.25, 71.65], [-121.0, 71.75], [-120.75, 71.65], [-120.68, 71.68], [-120.53, 72.03], [-120.18, 72.18], [-120.12, 72.3], [-120.25, 72.35], [-120.5, 72.25], [-120.75, 72.35], [-121.0, 72.25], [-121.25, 72.35], [-121.5, 72.25], [-121.75, 72.35], [-122.0, 72.25], [-122.53, 72.47], [-122.68, 72.82], [-122.75, 72.85], [-123.0, 72.75], [-123.25, 72.85], [-123.5, 72.75], [-123.75, 72.85], [-124.0, 72.75], [-124.53, 72.97], [-124.75, 73.5], [-124.53, 74.03], [-124.0, 74.25], [-123.75, 74.15], [-123.68, 74.18], [-123.53, 74.53], [-123.0, 74.75], [-122.75, 74.65], [-122.5, 74.75], [-122.25, 74.65], [-122.0, 74.75], [-121.75, 74.65], [-121.5, 74.75], [-121.25, 74.65], [-121.0, 74.75], [-120.75, 74.65], [-120.5, 74.75], [-120.25, 74.65], [-120.18, 74.68], [-120.03, 75.03], [-119.5, 75.25], [-119.25, 75.15], [-119.0, 75.25], [-118.75, 75.15], [-118.5, 75.25], [-118.25, 75.15], [-118.0, 75.25], [-117.75, 75.15], [-117.5, 75.25], [-117.25, 75.15], [-117.0, 75.25], [-116.75, 75.15], [-116.5, 75.25], [-115.97, 75.03], [-115.82, 74.68], [-115.75, 74.65], [-115.5, 74.75], [-114.97, 74.53], [-114.75, 74.0], [-114.85, 73.75], [-114.82, 73.68], [-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.47, 73.03], [-113.25, 72.5], [-113.35, 72.25], [-113.25, 72.0], [-113.47, 71.47], [-113.87, 71.3], [-113.75, 71.0], [-113.97, 70.47], [-114.5, 70.25], [-114.75, 70.35], [-115.0, 70.25], [-115.25, 70.35], [-115.5, 70.25], [-115.75, 70.35], [-116.0, 70.25], [-116.25, 70.35], [-116.5, 70.25], [-116.75, 70.35], [-117.0, 70.25], [-117.25, 70.35], [-117.32, 70.32], [-117.47, 69.97], [-118.0, 69.75], [-118.25, 69.85], [-118.5, 69.75], [-118.75, 69.85], [-119.0, 69.75], [-119.25, 69.85], [-119.5, 69.75], [-119.75, 69.85], [-120.0, 69.75], [-120.25, 69.85], [-120.32, 69.82], [-120.47, 69.47], [-121.0, 69.25], [-121.25, 69.35], [-121.5, 69.25], [-121.75, 69.35], [-122.0, 69.25], [-122.53, 69.47], [-122.68, 69.82], [-122.75, 69.85], [-123.0, 69.75], [-123.25, 69.85], [-123.5, 69.75], [-123.75, 69.85], [-124.0, 69.75], [-124.53, 69.97], [-124.68, 70.32], [-125.03, 70.47], [-125.25, 71.0]]]]}, "2016-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.25, 71.0], [-125.03, 71.53], [-124.68, 71.68], [-124.53, 72.03], [-124.0, 72.25], [-123.75, 72.15], [-123.5, 72.25], [-122.97, 72.03], [-122.82, 71.68], [-122.75, 71.65], [-122.5, 71.75], [-122.25, 71.65], [-122.0, 71.75], [-121.75, 71.65], [-121.5, 71.75], [-121.25, 71.65], [-121.0, 71.75], [-120.75, 71.65], [-120.68, 71.68], [-120.53, 72.03], [-120.18, 72.18], [-120.03, 72.53], [-119.5, 72.75], [-119.25, 72.65], [-119.18, 72.68], [-119.03, 73.03], [-118.5, 73.25], [-118.25, 73.15], [-118.18, 73.18], [-118.03, 73.53], [-117.68, 73.68], [-117.53, 74.03], [-117.0, 74.25], [-116.75, 74.15], [-116.5, 74.25], [-116.25, 74.15], [-116.0, 74.25], [-115.47, 74.03], [-115.32, 73.68], [-115.25, 73.65], [-115.0, 73.75], [-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.47, 73.03], [-113.25, 72.5], [-113.35, 72.25], [-113.25, 72.0], [-113.47, 71.47], [-113.87, 71.3], [-113.75, 71.0], [-113.97, 70.47], [-114.5, 70.25], [-114.75, 70.35], [-115.0, 70.25], [-115.25, 70.35], [-115.5, 70.25], [-115.75, 70.35], [-116.0, 70.25], [-116.25, 70.35], [-116.5, 70.25], [-116.75, 70.35], [-117.0, 70.25], [-117.25, 70.35], [-117.32, 70.32], [-117.47, 69.97], [-118.0, 69.75], [-118.25, 69.85], [-118.5, 69.75], [-118.75, 69.85], [-119.0, 69.75], [-119.25, 69.85], [-119.5, 69.75], [-119.75, 69.85], [-120.0, 69.75], [-120.25, 69.85], [-120.32, 69.82], [-120.47, 69.47], [-121.0, 69.25], [-121.25, 69.35], [-121.5, 69.25], [-121.75, 69.35], [-122.0, 69.25], [-122.53, 69.47], [-122.68, 69.82], [-122.75, 69.85], [-123.0, 69.75], [-123.25, 69.85], [-123.5, 69.75], [-123.75, 69.85], [-124.0, 69.75], [-124.53, 69.97], [-124.68, 70.32], [-125.03, 70.47], [-125.25, 71.0]]]]}, "2016-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.25, 72.0], [-119.03, 72.53], [-118.68, 72.68], [-118.53, 73.03], [-118.0, 73.25], [-117.75, 73.15], [-117.5, 73.25], [-117.25, 73.15], [-117.0, 73.25], [-116.75, 73.15], [-116.5, 73.25], [-116.25, 73.15], [-116.0, 73.25], [-115.47, 73.03], [-115.25, 72.5], [-115.47, 71.97], [-115.82, 71.82], [-115.97, 71.47], [-116.37, 71.3], [-116.25, 71.0], [-116.47, 70.47], [-117.0, 70.25], [-117.25, 70.35], [-117.5, 70.25], [-117.75, 70.35], [-118.0, 70.25], [-118.53, 70.47], [-118.75, 71.0], [-118.65, 71.25], [-118.68, 71.32], [-119.03, 71.47], [-119.25, 72.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.696099294945839}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.221855879569256}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-15.487866629065536, -15.86890806665906, -14.849026719578092, -14.555561590012587, -14.303473034827732, -16.371984093531125]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-11.968256795134437, -12.678178952275232, -12.775262324191829, -11.702682676430697, -12.339920045912777, -14.702111774180423]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.850064550407069, 8.291099443626612, 8.117075484310016, 8.480673587159757, 8.033719804194634, 7.819867318745071]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.555333950838246, 10.415064628520327, 11.429651376853485, 12.696099294945839, 12.159446213576643, 9.022462403122887]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4837597214091882, 1.617394729747403, 1.723851538189468, 1.8338008085632418, 1.7698481110815911, 1.4978229181094653]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5425990375396408, 1.9806149229182533, 2.018948221099883, 2.3739728933714908, 2.1790213339650557, 1.6363412050437562]}}