{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:35.487580", "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": "2013-Sep-21_to_2013-Sep-24_246.0_61.5"}, "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": 2013090002503}, "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 21 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2013"}, "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": 119985.55212743879}, "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": 61.5}, "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": 246.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "246.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 244.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 255.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.5, 62.75], [-114.25, 62.65], [-114.0, 62.75], [-113.75, 62.65], [-113.5, 62.75], [-113.25, 62.65], [-113.0, 62.75], [-112.75, 62.65], [-112.5, 62.75], [-112.25, 62.65], [-112.18, 62.68], [-112.15, 62.75], [-112.18, 62.82], [-112.53, 62.97], [-112.75, 63.5], [-112.53, 64.03], [-112.0, 64.25], [-111.75, 64.15], [-111.5, 64.25], [-111.25, 64.15], [-111.0, 64.25], [-110.75, 64.15], [-110.5, 64.25], [-110.25, 64.15], [-110.0, 64.25], [-109.75, 64.15], [-109.62, 64.2], [-109.75, 64.5], [-109.53, 65.03], [-109.0, 65.25], [-108.75, 65.15], [-108.5, 65.25], [-108.25, 65.15], [-108.0, 65.25], [-107.75, 65.15], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-106.25, 65.15], [-106.18, 65.18], [-106.03, 65.53], [-105.5, 65.75], [-104.97, 65.53], [-104.75, 65.0], [-104.85, 64.75], [-104.75, 64.5], [-104.85, 64.25], [-104.82, 64.18], [-104.47, 64.03], [-104.25, 63.5], [-104.46, 63.0], [-104.25, 62.5], [-104.47, 61.97], [-105.0, 61.75], [-105.25, 61.85], [-105.32, 61.82], [-105.35, 61.75], [-105.25, 61.5], [-105.47, 60.97], [-105.82, 60.82], [-105.97, 60.47], [-106.5, 60.25], [-107.03, 60.47], [-107.18, 60.82], [-107.25, 60.85], [-107.5, 60.75], [-107.75, 60.85], [-108.0, 60.75], [-108.25, 60.85], [-108.5, 60.75], [-108.75, 60.85], [-109.0, 60.75], [-109.25, 60.85], [-109.5, 60.75], [-109.75, 60.85], [-110.0, 60.75], [-110.53, 60.97], [-110.75, 61.5], [-110.62, 61.8], [-110.75, 61.85], [-111.0, 61.75], [-111.25, 61.85], [-111.32, 61.82], [-111.47, 61.47], [-112.0, 61.25], [-112.25, 61.35], [-112.5, 61.25], [-112.75, 61.35], [-112.82, 61.32], [-112.97, 60.97], [-113.5, 60.75], [-113.75, 60.85], [-114.0, 60.75], [-114.25, 60.85], [-114.5, 60.75], [-114.75, 60.85], [-115.0, 60.75], [-115.53, 60.97], [-115.75, 61.5], [-115.53, 62.03], [-115.18, 62.18], [-115.03, 62.53], [-114.5, 62.75]]]]}, "2013-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.5, 62.75], [-114.25, 62.65], [-114.0, 62.75], [-113.75, 62.65], [-113.5, 62.75], [-113.25, 62.65], [-113.0, 62.75], [-112.75, 62.65], [-112.5, 62.75], [-112.25, 62.65], [-112.18, 62.68], [-112.15, 62.75], [-112.18, 62.82], [-112.53, 62.97], [-112.75, 63.5], [-112.53, 64.03], [-112.0, 64.25], [-111.75, 64.15], [-111.5, 64.25], [-111.25, 64.15], [-111.0, 64.25], [-110.75, 64.15], [-110.5, 64.25], [-110.25, 64.15], [-110.0, 64.25], [-109.75, 64.15], [-109.62, 64.2], [-109.75, 64.5], [-109.53, 65.03], [-109.0, 65.25], [-108.75, 65.15], [-108.5, 65.25], [-108.25, 65.15], [-108.0, 65.25], [-107.75, 65.15], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-106.25, 65.15], [-106.18, 65.18], [-106.03, 65.53], [-105.5, 65.75], [-104.97, 65.53], [-104.75, 65.0], [-104.85, 64.75], [-104.75, 64.5], [-104.85, 64.25], [-104.82, 64.18], [-104.47, 64.03], [-104.25, 63.5], [-104.46, 63.0], [-104.25, 62.5], [-104.47, 61.97], [-105.0, 61.75], [-105.25, 61.85], [-105.32, 61.82], [-105.35, 61.75], [-105.25, 61.5], [-105.47, 60.97], [-105.82, 60.82], [-105.97, 60.47], [-106.5, 60.25], [-107.03, 60.47], [-107.18, 60.82], [-107.25, 60.85], [-107.5, 60.75], [-107.75, 60.85], [-108.0, 60.75], [-108.25, 60.85], [-108.5, 60.75], [-108.75, 60.85], [-109.0, 60.75], [-109.25, 60.85], [-109.5, 60.75], [-109.75, 60.85], [-110.0, 60.75], [-110.53, 60.97], [-110.75, 61.5], [-110.62, 61.8], [-110.75, 61.85], [-111.0, 61.75], [-111.25, 61.85], [-111.32, 61.82], [-111.47, 61.47], [-112.0, 61.25], [-112.25, 61.35], [-112.5, 61.25], [-112.75, 61.35], [-112.82, 61.32], [-112.97, 60.97], [-113.5, 60.75], [-113.75, 60.85], [-114.0, 60.75], [-114.25, 60.85], [-114.5, 60.75], [-114.75, 60.85], [-115.0, 60.75], [-115.53, 60.97], [-115.75, 61.5], [-115.53, 62.03], [-115.18, 62.18], [-115.03, 62.53], [-114.5, 62.75]]]]}, "2013-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.5, 62.75], [-114.25, 62.65], [-114.0, 62.75], [-113.75, 62.65], [-113.5, 62.75], [-113.25, 62.65], [-113.0, 62.75], [-112.75, 62.65], [-112.5, 62.75], [-112.25, 62.65], [-112.18, 62.68], [-112.15, 62.75], [-112.18, 62.82], [-112.53, 62.97], [-112.75, 63.5], [-112.53, 64.03], [-112.0, 64.25], [-111.75, 64.15], [-111.5, 64.25], [-111.25, 64.15], [-111.0, 64.25], [-110.75, 64.15], [-110.5, 64.25], [-110.25, 64.15], [-110.0, 64.25], [-109.75, 64.15], [-109.62, 64.2], [-109.75, 64.5], [-109.53, 65.03], [-109.0, 65.25], [-108.75, 65.15], [-108.5, 65.25], [-108.25, 65.15], [-108.0, 65.25], [-107.75, 65.15], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-106.25, 65.15], [-106.18, 65.18], [-106.03, 65.53], [-105.5, 65.75], [-104.97, 65.53], [-104.75, 65.0], [-104.85, 64.75], [-104.75, 64.5], [-104.85, 64.25], [-104.82, 64.18], [-104.47, 64.03], [-104.25, 63.5], [-104.46, 63.0], [-104.25, 62.5], [-104.47, 61.97], [-105.0, 61.75], [-105.25, 61.85], [-105.32, 61.82], [-105.35, 61.75], [-105.25, 61.5], [-105.47, 60.97], [-105.82, 60.82], [-105.97, 60.47], [-106.5, 60.25], [-107.03, 60.47], [-107.18, 60.82], [-107.25, 60.85], [-107.5, 60.75], [-107.75, 60.85], [-108.0, 60.75], [-108.25, 60.85], [-108.5, 60.75], [-108.75, 60.85], [-109.0, 60.75], [-109.25, 60.85], [-109.5, 60.75], [-109.75, 60.85], [-110.0, 60.75], [-110.53, 60.97], [-110.75, 61.5], [-110.62, 61.8], [-110.75, 61.85], [-111.0, 61.75], [-111.25, 61.85], [-111.32, 61.82], [-111.47, 61.47], [-112.0, 61.25], [-112.25, 61.35], [-112.5, 61.25], [-112.75, 61.35], [-112.82, 61.32], [-112.97, 60.97], [-113.5, 60.75], [-113.75, 60.85], [-114.0, 60.75], [-114.25, 60.85], [-114.5, 60.75], [-114.75, 60.85], [-115.0, 60.75], [-115.53, 60.97], [-115.75, 61.5], [-115.53, 62.03], [-115.18, 62.18], [-115.03, 62.53], [-114.5, 62.75]]]]}, "2013-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.03, 62.53], [-114.5, 62.75], [-114.25, 62.65], [-114.0, 62.75], [-113.75, 62.65], [-113.5, 62.75], [-113.25, 62.65], [-113.0, 62.75], [-112.75, 62.65], [-112.5, 62.75], [-112.25, 62.65], [-112.18, 62.68], [-112.03, 63.03], [-111.5, 63.25], [-111.25, 63.15], [-111.0, 63.25], [-110.75, 63.15], [-110.5, 63.25], [-109.97, 63.03], [-109.75, 62.5], [-109.87, 62.2], [-109.47, 62.03], [-109.25, 61.5], [-109.47, 60.97], [-110.0, 60.75], [-110.53, 60.97], [-110.75, 61.5], [-110.62, 61.8], [-110.75, 61.85], [-111.0, 61.75], [-111.25, 61.85], [-111.32, 61.82], [-111.47, 61.47], [-112.0, 61.25], [-112.25, 61.35], [-112.5, 61.25], [-112.75, 61.35], [-112.82, 61.32], [-112.97, 60.97], [-113.5, 60.75], [-113.75, 60.85], [-114.0, 60.75], [-114.25, 60.85], [-114.5, 60.75], [-115.03, 60.97], [-115.25, 61.5], [-115.15, 61.75], [-115.25, 62.0], [-115.03, 62.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.60601375063402}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.870392072643672}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.736158343606462, 10.61054664118842, 10.430466642893975, 12.840117453840094]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.01183877901417, 14.384654018102253, 14.817147779454842, 14.036880355023243]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.054616405013426, 5.9011814617566625, 5.792561211609865, 4.97342721586215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.107526521362388, 7.60601375063402, 6.7673003215851395, 5.500454224399846]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.579208954812478, 1.5476525654718825, 1.5052668980820474, 1.5412179787702924]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8596385266620667, 1.8515726665363283, 1.7410904542497312, 1.70593944175407]}}