{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:46.168247", "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-04_to_2014-Feb-06_198.5_55.5"}, "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": 2014020001539}, "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 04 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 06 2014"}, "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": 83020.80619833016}, "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", "Gulf of Alaska"]}, "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": 55.5}, "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": 198.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "198.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 195.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 200.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-165.15, 56.25], [-165.25, 56.5], [-165.15, 56.75], [-165.25, 57.0], [-165.15, 57.25], [-165.25, 57.5], [-165.03, 58.03], [-164.68, 58.18], [-164.65, 58.25], [-164.75, 58.5], [-164.53, 59.03], [-164.0, 59.25], [-163.75, 59.15], [-163.5, 59.25], [-162.97, 59.03], [-162.82, 58.68], [-162.75, 58.65], [-162.68, 58.68], [-162.53, 59.03], [-162.0, 59.25], [-161.47, 59.03], [-161.32, 58.68], [-161.0, 58.54], [-160.5, 58.75], [-160.25, 58.65], [-160.0, 58.75], [-159.75, 58.65], [-159.5, 58.75], [-158.97, 58.53], [-158.75, 58.0], [-158.85, 57.75], [-158.75, 57.5], [-158.85, 57.25], [-158.75, 57.0], [-158.97, 56.47], [-159.32, 56.32], [-159.35, 56.25], [-159.25, 56.0], [-159.47, 55.47], [-159.82, 55.32], [-159.97, 54.97], [-160.5, 54.75], [-160.75, 54.85], [-161.0, 54.75], [-161.25, 54.85], [-161.32, 54.82], [-161.47, 54.47], [-162.0, 54.25], [-162.25, 54.35], [-162.5, 54.25], [-163.03, 54.47], [-163.2, 54.88], [-163.32, 54.82], [-163.47, 54.47], [-164.0, 54.25], [-164.53, 54.47], [-164.68, 54.82], [-165.03, 54.97], [-165.25, 55.5], [-165.15, 55.75], [-165.25, 56.0], [-165.15, 56.25]], [[-163.0, 56.75], [-162.75, 56.65], [-162.68, 56.68], [-162.53, 57.03], [-162.0, 57.25], [-162.25, 57.35], [-162.5, 57.25], [-162.75, 57.35], [-162.82, 57.32], [-162.97, 56.97], [-163.32, 56.82], [-163.43, 56.57], [-163.0, 56.75]], [[-161.75, 57.15], [-161.68, 57.18], [-161.65, 57.25], [-161.68, 57.32], [-161.75, 57.35], [-162.0, 57.25], [-161.75, 57.15]], [[-163.68, 56.18], [-163.57, 56.43], [-163.82, 56.32], [-163.85, 56.25], [-163.82, 56.18], [-163.75, 56.15], [-163.68, 56.18]]]]}, "2014-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-165.15, 56.25], [-165.25, 56.5], [-165.15, 56.75], [-165.25, 57.0], [-165.15, 57.25], [-165.25, 57.5], [-165.03, 58.03], [-164.68, 58.18], [-164.65, 58.25], [-164.75, 58.5], [-164.53, 59.03], [-164.0, 59.25], [-163.75, 59.15], [-163.5, 59.25], [-162.97, 59.03], [-162.82, 58.68], [-162.75, 58.65], [-162.68, 58.68], [-162.53, 59.03], [-162.0, 59.25], [-161.47, 59.03], [-161.32, 58.68], [-161.0, 58.54], [-160.5, 58.75], [-160.25, 58.65], [-160.0, 58.75], [-159.75, 58.65], [-159.5, 58.75], [-158.97, 58.53], [-158.75, 58.0], [-158.85, 57.75], [-158.75, 57.5], [-158.85, 57.25], [-158.75, 57.0], [-158.97, 56.47], [-159.32, 56.32], [-159.35, 56.25], [-159.25, 56.0], [-159.47, 55.47], [-159.82, 55.32], [-159.97, 54.97], [-160.5, 54.75], [-160.75, 54.85], [-161.0, 54.75], [-161.25, 54.85], [-161.32, 54.82], [-161.47, 54.47], [-162.0, 54.25], [-162.25, 54.35], [-162.5, 54.25], [-163.03, 54.47], [-163.2, 54.88], [-163.32, 54.82], [-163.47, 54.47], [-164.0, 54.25], [-164.53, 54.47], [-164.68, 54.82], [-165.03, 54.97], [-165.25, 55.5], [-165.15, 55.75], [-165.25, 56.0], [-165.15, 56.25]], [[-163.0, 56.75], [-162.75, 56.65], [-162.68, 56.68], [-162.53, 57.03], [-162.0, 57.25], [-162.25, 57.35], [-162.5, 57.25], [-162.75, 57.35], [-162.82, 57.32], [-162.97, 56.97], [-163.32, 56.82], [-163.43, 56.57], [-163.0, 56.75]], [[-161.75, 57.15], [-161.68, 57.18], [-161.65, 57.25], [-161.68, 57.32], [-161.75, 57.35], [-162.0, 57.25], [-161.75, 57.15]], [[-163.68, 56.18], [-163.57, 56.43], [-163.82, 56.32], [-163.85, 56.25], [-163.82, 56.18], [-163.75, 56.15], [-163.68, 56.18]]]]}, "2014-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-165.15, 56.25], [-165.25, 56.5], [-165.15, 56.75], [-165.25, 57.0], [-165.15, 57.25], [-165.25, 57.5], [-165.03, 58.03], [-164.68, 58.18], [-164.65, 58.25], [-164.75, 58.5], [-164.53, 59.03], [-164.0, 59.25], [-163.75, 59.15], [-163.5, 59.25], [-162.97, 59.03], [-162.82, 58.68], [-162.75, 58.65], [-162.68, 58.68], [-162.53, 59.03], [-162.0, 59.25], [-161.47, 59.03], [-161.32, 58.68], [-161.0, 58.54], [-160.5, 58.75], [-160.25, 58.65], [-160.0, 58.75], [-159.75, 58.65], [-159.5, 58.75], [-158.97, 58.53], [-158.75, 58.0], [-158.85, 57.75], [-158.75, 57.5], [-158.85, 57.25], [-158.75, 57.0], [-158.97, 56.47], [-159.32, 56.32], [-159.35, 56.25], [-159.25, 56.0], [-159.47, 55.47], [-159.82, 55.32], [-159.97, 54.97], [-160.5, 54.75], [-160.75, 54.85], [-161.0, 54.75], [-161.25, 54.85], [-161.32, 54.82], [-161.47, 54.47], [-162.0, 54.25], [-162.25, 54.35], [-162.5, 54.25], [-163.03, 54.47], [-163.2, 54.88], [-163.32, 54.82], [-163.47, 54.47], [-164.0, 54.25], [-164.53, 54.47], [-164.68, 54.82], [-165.03, 54.97], [-165.25, 55.5], [-165.15, 55.75], [-165.25, 56.0], [-165.15, 56.25]], [[-163.0, 56.75], [-162.75, 56.65], [-162.68, 56.68], [-162.53, 57.03], [-162.0, 57.25], [-162.25, 57.35], [-162.5, 57.25], [-162.75, 57.35], [-162.82, 57.32], [-162.97, 56.97], [-163.32, 56.82], [-163.43, 56.57], [-163.0, 56.75]], [[-161.75, 57.15], [-161.68, 57.18], [-161.65, 57.25], [-161.68, 57.32], [-161.75, 57.35], [-162.0, 57.25], [-161.75, 57.15]], [[-163.68, 56.18], [-163.57, 56.43], [-163.82, 56.32], [-163.85, 56.25], [-163.82, 56.18], [-163.75, 56.15], [-163.68, 56.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.770935626442224}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.20245276109033}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.2778649021224737, 4.140887102807483, 2.8439162469211396]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.469252826236868, 5.53951857996924, 4.135636984649921]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.331970989756061, 6.906515061945479, 5.368872231569442]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.599488839150524, 8.770935626442224, 7.3452239326893505]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.0727944098311346, 1.2235208830232709, 0.9768364577736472]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2994316318572923, 1.5311189936164042, 1.1605404685322707]}}