{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:49.166417", "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": "2014-Feb-25_to_2014-Mar-02_206.5_60.5"}, "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": 2014020002307}, "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": "February 25 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 2014"}, "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": 130546.57474652157}, "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": ["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": ["Bering Sea"]}, "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": 60.5}, "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": 206.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "206.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 197.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 208.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-155.5, 60.75], [-154.97, 60.53], [-154.75, 60.0], [-154.97, 59.47], [-155.5, 59.25], [-156.03, 59.47], [-156.25, 60.0], [-156.03, 60.53], [-155.5, 60.75]]]]}, "2014-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.75, 60.0], [-162.53, 60.53], [-162.0, 60.75], [-161.75, 60.65], [-161.68, 60.68], [-161.65, 60.75], [-161.75, 61.0], [-161.53, 61.53], [-161.0, 61.75], [-160.75, 61.65], [-160.5, 61.75], [-160.25, 61.65], [-160.0, 61.75], [-159.47, 61.53], [-159.32, 61.18], [-158.97, 61.03], [-158.82, 60.68], [-158.75, 60.65], [-158.5, 60.75], [-158.25, 60.65], [-158.0, 60.75], [-157.75, 60.65], [-157.68, 60.68], [-157.53, 61.03], [-157.0, 61.25], [-156.75, 61.15], [-156.68, 61.18], [-156.53, 61.53], [-156.0, 61.75], [-155.75, 61.65], [-155.68, 61.68], [-155.53, 62.03], [-155.0, 62.25], [-154.75, 62.15], [-154.5, 62.25], [-154.25, 62.15], [-154.0, 62.25], [-153.75, 62.15], [-153.5, 62.25], [-153.25, 62.15], [-153.0, 62.25], [-152.75, 62.15], [-152.5, 62.25], [-151.97, 62.03], [-151.82, 61.68], [-151.47, 61.53], [-151.25, 61.0], [-151.47, 60.47], [-151.82, 60.32], [-151.97, 59.97], [-152.32, 59.82], [-152.47, 59.47], [-153.0, 59.25], [-153.25, 59.35], [-153.5, 59.25], [-153.75, 59.35], [-154.0, 59.25], [-154.25, 59.35], [-154.5, 59.25], [-154.75, 59.35], [-155.0, 59.25], [-155.25, 59.35], [-155.37, 59.3], [-155.25, 59.0], [-155.35, 58.75], [-155.32, 58.68], [-154.97, 58.53], [-154.75, 58.0], [-154.97, 57.47], [-155.5, 57.25], [-155.75, 57.35], [-155.82, 57.32], [-155.97, 56.97], [-156.32, 56.82], [-156.47, 56.47], [-157.0, 56.25], [-157.25, 56.35], [-157.5, 56.25], [-157.75, 56.35], [-158.0, 56.25], [-158.53, 56.47], [-158.75, 57.0], [-158.53, 57.53], [-158.18, 57.68], [-158.15, 57.75], [-158.25, 58.0], [-158.12, 58.3], [-158.25, 58.35], [-158.5, 58.25], [-158.75, 58.35], [-159.0, 58.25], [-159.25, 58.35], [-159.5, 58.25], [-160.03, 58.47], [-160.18, 58.82], [-160.25, 58.85], [-160.32, 58.82], [-160.47, 58.47], [-161.0, 58.25], [-161.25, 58.35], [-161.5, 58.25], [-162.03, 58.47], [-162.25, 59.0], [-162.15, 59.25], [-162.18, 59.32], [-162.53, 59.47], [-162.75, 60.0]]]]}, "2014-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.75, 60.0], [-162.53, 60.53], [-162.0, 60.75], [-161.75, 60.65], [-161.68, 60.68], [-161.65, 60.75], [-161.75, 61.0], [-161.53, 61.53], [-161.0, 61.75], [-160.75, 61.65], [-160.5, 61.75], [-160.25, 61.65], [-160.0, 61.75], [-159.47, 61.53], [-159.32, 61.18], [-158.97, 61.03], [-158.82, 60.68], [-158.75, 60.65], [-158.5, 60.75], [-158.25, 60.65], [-158.0, 60.75], [-157.75, 60.65], [-157.68, 60.68], [-157.53, 61.03], [-157.0, 61.25], [-156.75, 61.15], [-156.68, 61.18], [-156.53, 61.53], [-156.0, 61.75], [-155.75, 61.65], [-155.68, 61.68], [-155.53, 62.03], [-155.0, 62.25], [-154.75, 62.15], [-154.5, 62.25], [-154.25, 62.15], [-154.0, 62.25], [-153.75, 62.15], [-153.5, 62.25], [-153.25, 62.15], [-153.0, 62.25], [-152.75, 62.15], [-152.5, 62.25], [-151.97, 62.03], [-151.82, 61.68], [-151.47, 61.53], [-151.25, 61.0], [-151.47, 60.47], [-151.82, 60.32], [-151.97, 59.97], [-152.32, 59.82], [-152.47, 59.47], [-153.0, 59.25], [-153.25, 59.35], [-153.5, 59.25], [-153.75, 59.35], [-154.0, 59.25], [-154.25, 59.35], [-154.5, 59.25], [-154.75, 59.35], [-155.0, 59.25], [-155.25, 59.35], [-155.37, 59.3], [-155.25, 59.0], [-155.35, 58.75], [-155.32, 58.68], [-154.97, 58.53], [-154.75, 58.0], [-154.97, 57.47], [-155.5, 57.25], [-155.75, 57.35], [-155.82, 57.32], [-155.97, 56.97], [-156.32, 56.82], [-156.47, 56.47], [-157.0, 56.25], [-157.25, 56.35], [-157.5, 56.25], [-157.75, 56.35], [-158.0, 56.25], [-158.53, 56.47], [-158.75, 57.0], [-158.53, 57.53], [-158.18, 57.68], [-158.15, 57.75], [-158.25, 58.0], [-158.12, 58.3], [-158.25, 58.35], [-158.5, 58.25], [-158.75, 58.35], [-159.0, 58.25], [-159.25, 58.35], [-159.5, 58.25], [-160.03, 58.47], [-160.18, 58.82], [-160.25, 58.85], [-160.32, 58.82], [-160.47, 58.47], [-161.0, 58.25], [-161.25, 58.35], [-161.5, 58.25], [-162.03, 58.47], [-162.25, 59.0], [-162.15, 59.25], [-162.18, 59.32], [-162.53, 59.47], [-162.75, 60.0]]]]}, "2014-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.75, 60.0], [-162.53, 60.53], [-162.0, 60.75], [-161.75, 60.65], [-161.68, 60.68], [-161.65, 60.75], [-161.75, 61.0], [-161.53, 61.53], [-161.0, 61.75], [-160.75, 61.65], [-160.5, 61.75], [-160.25, 61.65], [-160.0, 61.75], [-159.47, 61.53], [-159.32, 61.18], [-158.97, 61.03], [-158.82, 60.68], [-158.75, 60.65], [-158.5, 60.75], [-158.25, 60.65], [-158.0, 60.75], [-157.75, 60.65], [-157.68, 60.68], [-157.53, 61.03], [-157.0, 61.25], [-156.75, 61.15], [-156.68, 61.18], [-156.53, 61.53], [-156.0, 61.75], [-155.75, 61.65], [-155.68, 61.68], [-155.53, 62.03], [-155.0, 62.25], [-154.75, 62.15], [-154.5, 62.25], [-154.25, 62.15], [-154.0, 62.25], [-153.75, 62.15], [-153.5, 62.25], [-153.25, 62.15], [-153.0, 62.25], [-152.75, 62.15], [-152.5, 62.25], [-151.97, 62.03], [-151.82, 61.68], [-151.47, 61.53], [-151.25, 61.0], [-151.47, 60.47], [-151.82, 60.32], [-151.97, 59.97], [-152.32, 59.82], [-152.47, 59.47], [-153.0, 59.25], [-153.25, 59.35], [-153.5, 59.25], [-153.75, 59.35], [-154.0, 59.25], [-154.25, 59.35], [-154.5, 59.25], [-154.75, 59.35], [-155.0, 59.25], [-155.25, 59.35], [-155.37, 59.3], [-155.25, 59.0], [-155.35, 58.75], [-155.32, 58.68], [-154.97, 58.53], [-154.75, 58.0], [-154.97, 57.47], [-155.5, 57.25], [-155.75, 57.35], [-155.82, 57.32], [-155.97, 56.97], [-156.32, 56.82], [-156.47, 56.47], [-157.0, 56.25], [-157.25, 56.35], [-157.5, 56.25], [-157.75, 56.35], [-158.0, 56.25], [-158.53, 56.47], [-158.75, 57.0], [-158.53, 57.53], [-158.18, 57.68], [-158.15, 57.75], [-158.25, 58.0], [-158.12, 58.3], [-158.25, 58.35], [-158.5, 58.25], [-158.75, 58.35], [-159.0, 58.25], [-159.25, 58.35], [-159.5, 58.25], [-160.03, 58.47], [-160.18, 58.82], [-160.25, 58.85], [-160.32, 58.82], [-160.47, 58.47], [-161.0, 58.25], [-161.25, 58.35], [-161.5, 58.25], [-162.03, 58.47], [-162.25, 59.0], [-162.15, 59.25], [-162.18, 59.32], [-162.53, 59.47], [-162.75, 60.0]]]]}, "2014-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-154.75, 60.5], [-154.53, 61.03], [-154.0, 61.25], [-153.75, 61.15], [-153.5, 61.25], [-152.97, 61.03], [-152.75, 60.5], [-152.85, 60.25], [-152.75, 60.0], [-152.97, 59.47], [-153.5, 59.25], [-154.03, 59.47], [-154.18, 59.82], [-154.53, 59.97], [-154.75, 60.5]]]]}, "2014-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-154.03, 61.03], [-153.5, 61.25], [-152.97, 61.03], [-152.75, 60.5], [-152.85, 60.25], [-152.75, 60.0], [-152.97, 59.47], [-153.5, 59.25], [-154.03, 59.47], [-154.25, 60.0], [-154.15, 60.25], [-154.25, 60.5], [-154.03, 61.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.674496091461492}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.796391658960161}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.6912986398037333, 1.2477584492938263, 3.475219112232992, 1.6578348079735292, -2.109552320479395, -2.7095443984514986]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.6912986398037333, 5.637861071012367, 6.824912786426296, 5.065160681996815, -1.6678478813309994, -2.101322113735364]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.367869019935824, 8.758701621798485, 11.184008553542258, 9.554185520424943, 8.360056007104637, 8.140886263077164]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.367869019935824, 11.109779147696202, 13.674496091461492, 12.145084724587093, 8.65347463526507, 8.246550655336478]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.0991980016482976, 1.293055354871853, 1.6555284687267378, 1.3993509680452465, 1.3360742129708136, 1.2605534874613218]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.0991980016482976, 1.5430597070595478, 2.4425853680607466, 2.243221134085911, 1.4049345350889608, 1.269880134372726]}}