{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:42.043836", "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": "2011-Oct-14_to_2011-Oct-17_249.0_37.5"}, "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": 2011100002257}, "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": "October 14 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 17 2011"}, "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": 72051.15864375918}, "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": 37.5}, "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": 249.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 252.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.5, 37.25], [-109.97, 37.03], [-109.75, 36.5], [-109.97, 35.97], [-110.5, 35.75], [-111.03, 35.97], [-111.25, 36.5], [-111.03, 37.03], [-110.5, 37.25]]]]}, "2011-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 36.5], [-113.15, 36.75], [-113.25, 37.0], [-113.03, 37.53], [-112.68, 37.68], [-112.53, 38.03], [-112.0, 38.25], [-111.75, 38.15], [-111.5, 38.25], [-111.25, 38.15], [-111.0, 38.25], [-110.75, 38.15], [-110.5, 38.25], [-110.25, 38.15], [-110.0, 38.25], [-109.75, 38.15], [-109.5, 38.25], [-108.97, 38.03], [-108.82, 37.68], [-108.47, 37.53], [-108.32, 37.18], [-108.25, 37.15], [-108.0, 37.25], [-107.47, 37.03], [-107.25, 36.5], [-107.47, 35.97], [-108.0, 35.75], [-108.25, 35.85], [-108.5, 35.75], [-109.03, 35.97], [-109.18, 36.32], [-109.25, 36.35], [-109.5, 36.25], [-109.75, 36.35], [-109.82, 36.32], [-109.85, 36.25], [-109.82, 36.18], [-109.47, 36.03], [-109.32, 35.68], [-108.97, 35.53], [-108.75, 35.0], [-108.97, 34.47], [-109.5, 34.25], [-109.75, 34.35], [-110.0, 34.25], [-110.53, 34.47], [-110.75, 35.0], [-110.65, 35.25], [-110.68, 35.32], [-110.75, 35.35], [-111.0, 35.25], [-111.25, 35.35], [-111.5, 35.25], [-111.75, 35.35], [-111.82, 35.32], [-111.85, 35.25], [-111.75, 35.0], [-111.97, 34.47], [-112.5, 34.25], [-112.75, 34.35], [-113.0, 34.25], [-113.53, 34.47], [-113.75, 35.0], [-113.53, 35.53], [-113.18, 35.68], [-113.04, 36.0], [-113.25, 36.5]]]]}, "2011-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 36.5], [-113.15, 36.75], [-113.25, 37.0], [-113.03, 37.53], [-112.68, 37.68], [-112.53, 38.03], [-112.0, 38.25], [-111.75, 38.15], [-111.5, 38.25], [-111.25, 38.15], [-111.0, 38.25], [-110.75, 38.15], [-110.5, 38.25], [-110.25, 38.15], [-110.0, 38.25], [-109.75, 38.15], [-109.5, 38.25], [-108.97, 38.03], [-108.82, 37.68], [-108.47, 37.53], [-108.32, 37.18], [-108.25, 37.15], [-108.0, 37.25], [-107.47, 37.03], [-107.25, 36.5], [-107.47, 35.97], [-108.0, 35.75], [-108.25, 35.85], [-108.5, 35.75], [-109.03, 35.97], [-109.18, 36.32], [-109.25, 36.35], [-109.5, 36.25], [-109.75, 36.35], [-109.82, 36.32], [-109.85, 36.25], [-109.82, 36.18], [-109.47, 36.03], [-109.32, 35.68], [-108.97, 35.53], [-108.75, 35.0], [-108.97, 34.47], [-109.5, 34.25], [-109.75, 34.35], [-110.0, 34.25], [-110.53, 34.47], [-110.75, 35.0], [-110.65, 35.25], [-110.68, 35.32], [-110.75, 35.35], [-111.0, 35.25], [-111.25, 35.35], [-111.5, 35.25], [-111.75, 35.35], [-111.82, 35.32], [-111.85, 35.25], [-111.75, 35.0], [-111.97, 34.47], [-112.5, 34.25], [-112.75, 34.35], [-113.0, 34.25], [-113.53, 34.47], [-113.75, 35.0], [-113.53, 35.53], [-113.18, 35.68], [-113.04, 36.0], [-113.25, 36.5]]]]}, "2011-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 36.5], [-113.15, 36.75], [-113.25, 37.0], [-113.03, 37.53], [-112.68, 37.68], [-112.53, 38.03], [-112.0, 38.25], [-111.75, 38.15], [-111.5, 38.25], [-111.25, 38.15], [-111.0, 38.25], [-110.75, 38.15], [-110.5, 38.25], [-110.25, 38.15], [-110.0, 38.25], [-109.75, 38.15], [-109.5, 38.25], [-108.97, 38.03], [-108.82, 37.68], [-108.47, 37.53], [-108.32, 37.18], [-108.25, 37.15], [-108.0, 37.25], [-107.47, 37.03], [-107.25, 36.5], [-107.47, 35.97], [-108.0, 35.75], [-108.25, 35.85], [-108.5, 35.75], [-109.03, 35.97], [-109.18, 36.32], [-109.25, 36.35], [-109.5, 36.25], [-109.75, 36.35], [-109.87, 36.3], [-109.82, 36.18], [-109.47, 36.03], [-109.32, 35.68], [-108.97, 35.53], [-108.75, 35.0], [-108.97, 34.47], [-109.5, 34.25], [-109.75, 34.35], [-110.0, 34.25], [-110.53, 34.47], [-110.75, 35.0], [-110.65, 35.25], [-110.68, 35.32], [-110.75, 35.35], [-111.0, 35.25], [-111.25, 35.35], [-111.5, 35.25], [-111.75, 35.35], [-111.82, 35.32], [-111.85, 35.25], [-111.75, 35.0], [-111.97, 34.47], [-112.5, 34.25], [-112.75, 34.35], [-113.0, 34.25], [-113.53, 34.47], [-113.75, 35.0], [-113.53, 35.53], [-113.18, 35.68], [-113.04, 36.0], [-113.25, 36.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.218141711511976}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.795713818555254}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.094769514290704, 18.263680884089297, 18.441422241073212, 18.031801973836025]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.094769514290704, 20.622328397187346, 20.949353443301163, 20.02725243059399]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.694019184367107, 4.642925643843004, 5.0626971698161665, 4.681072194065144]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.694019184367107, 6.218141711511976, 6.010079469647337, 5.665304447814663]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2446812409888095, 1.2986425504354562, 1.4259340520561807, 1.3787063260613786]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2446812409888095, 1.6406072762004678, 1.6944015108654997, 1.7043276932848737]}}