{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:16.433150", "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-Aug-20_to_2011-Aug-25_329.5_39.0"}, "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": 2011080002738}, "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": "August 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2011"}, "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": 364877.88085165503}, "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": ["Azores"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["North Atlantic Ocean"]}, "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": 39.0}, "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": 329.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "329.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 322.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 332.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-32.75, 39.5], [-32.53, 40.03], [-32.0, 40.25], [-31.75, 40.15], [-31.68, 40.18], [-31.53, 40.53], [-31.0, 40.75], [-30.47, 40.53], [-30.32, 40.18], [-30.25, 40.15], [-30.0, 40.25], [-29.75, 40.15], [-29.5, 40.25], [-28.97, 40.03], [-28.82, 39.68], [-28.75, 39.65], [-28.5, 39.75], [-28.25, 39.65], [-28.0, 39.75], [-27.47, 39.53], [-27.32, 39.18], [-26.97, 39.03], [-26.75, 38.5], [-26.85, 38.25], [-26.75, 38.0], [-26.97, 37.47], [-27.5, 37.25], [-27.75, 37.35], [-28.0, 37.25], [-28.25, 37.35], [-28.5, 37.25], [-28.75, 37.35], [-29.0, 37.25], [-29.25, 37.35], [-29.5, 37.25], [-30.03, 37.47], [-30.18, 37.82], [-30.25, 37.85], [-30.5, 37.75], [-30.75, 37.85], [-31.0, 37.75], [-31.53, 37.97], [-31.68, 38.32], [-32.03, 38.47], [-32.18, 38.82], [-32.53, 38.97], [-32.75, 39.5]]]]}, "2011-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-36.5, 40.25], [-36.25, 40.15], [-36.0, 40.25], [-35.75, 40.15], [-35.5, 40.25], [-34.97, 40.03], [-34.82, 39.68], [-34.75, 39.65], [-34.5, 39.75], [-34.25, 39.65], [-34.18, 39.68], [-34.03, 40.03], [-33.5, 40.25], [-33.2, 40.12], [-33.03, 40.53], [-32.5, 40.75], [-32.25, 40.65], [-32.0, 40.75], [-31.75, 40.65], [-31.5, 40.75], [-31.25, 40.65], [-31.0, 40.75], [-30.75, 40.65], [-30.5, 40.75], [-29.97, 40.53], [-29.82, 40.18], [-29.75, 40.15], [-29.5, 40.25], [-28.97, 40.03], [-28.82, 39.68], [-28.75, 39.65], [-28.5, 39.75], [-28.25, 39.65], [-28.0, 39.75], [-27.47, 39.53], [-27.32, 39.18], [-26.97, 39.03], [-26.75, 38.5], [-26.85, 38.25], [-26.75, 38.0], [-26.97, 37.47], [-27.32, 37.32], [-27.47, 36.97], [-27.82, 36.82], [-27.97, 36.47], [-28.5, 36.25], [-29.03, 36.47], [-29.25, 37.0], [-29.15, 37.25], [-29.18, 37.32], [-29.25, 37.35], [-29.5, 37.25], [-30.03, 37.47], [-30.18, 37.82], [-30.25, 37.85], [-30.5, 37.75], [-30.75, 37.85], [-31.0, 37.75], [-31.53, 37.97], [-31.68, 38.32], [-31.75, 38.35], [-32.0, 38.25], [-32.25, 38.35], [-32.5, 38.25], [-32.75, 38.35], [-33.0, 38.25], [-33.25, 38.35], [-33.5, 38.25], [-33.75, 38.35], [-34.0, 38.25], [-34.25, 38.35], [-34.5, 38.25], [-34.75, 38.35], [-35.0, 38.25], [-35.25, 38.35], [-35.5, 38.25], [-35.75, 38.35], [-36.0, 38.25], [-36.25, 38.35], [-36.5, 38.25], [-36.75, 38.35], [-37.0, 38.25], [-37.53, 38.47], [-37.75, 39.0], [-37.53, 39.53], [-37.18, 39.68], [-37.03, 40.03], [-36.5, 40.25]]]]}, "2011-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.03, 41.03], [-37.5, 41.25], [-37.25, 41.15], [-37.18, 41.18], [-37.03, 41.53], [-36.68, 41.68], [-36.53, 42.03], [-36.0, 42.25], [-35.75, 42.15], [-35.68, 42.18], [-35.53, 42.53], [-35.18, 42.68], [-35.03, 43.03], [-34.5, 43.25], [-34.25, 43.15], [-34.0, 43.25], [-33.47, 43.03], [-33.32, 42.68], [-32.97, 42.53], [-32.82, 42.18], [-32.47, 42.03], [-32.32, 41.68], [-32.0, 41.54], [-31.5, 41.75], [-30.97, 41.53], [-30.82, 41.18], [-30.47, 41.03], [-30.32, 40.68], [-29.97, 40.53], [-29.82, 40.18], [-29.75, 40.15], [-29.5, 40.25], [-28.97, 40.03], [-28.82, 39.68], [-28.75, 39.65], [-28.5, 39.75], [-28.25, 39.65], [-28.0, 39.75], [-27.47, 39.53], [-27.32, 39.18], [-26.97, 39.03], [-26.75, 38.5], [-26.85, 38.25], [-26.75, 38.0], [-26.97, 37.47], [-27.32, 37.32], [-27.47, 36.97], [-27.82, 36.82], [-27.97, 36.47], [-28.5, 36.25], [-29.03, 36.47], [-29.2, 36.88], [-29.5, 36.75], [-29.75, 36.85], [-30.0, 36.75], [-30.25, 36.85], [-30.5, 36.75], [-30.75, 36.85], [-31.0, 36.75], [-31.25, 36.85], [-31.5, 36.75], [-31.75, 36.85], [-32.0, 36.75], [-32.25, 36.85], [-32.5, 36.75], [-32.75, 36.85], [-32.82, 36.82], [-32.97, 36.47], [-33.32, 36.32], [-33.47, 35.97], [-34.0, 35.75], [-34.53, 35.97], [-34.75, 36.5], [-34.65, 36.75], [-34.68, 36.82], [-34.75, 36.85], [-35.0, 36.75], [-35.53, 36.97], [-35.68, 37.32], [-35.75, 37.35], [-36.0, 37.25], [-36.25, 37.35], [-36.5, 37.25], [-37.03, 37.47], [-37.25, 38.0], [-37.12, 38.3], [-37.25, 38.35], [-37.5, 38.25], [-38.03, 38.47], [-38.25, 39.0], [-38.04, 39.5], [-38.25, 40.0], [-38.15, 40.25], [-38.25, 40.5], [-38.03, 41.03]]]]}, "2011-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.03, 41.03], [-37.5, 41.25], [-37.25, 41.15], [-37.18, 41.18], [-37.03, 41.53], [-36.68, 41.68], [-36.53, 42.03], [-36.0, 42.25], [-35.75, 42.15], [-35.68, 42.18], [-35.53, 42.53], [-35.18, 42.68], [-35.03, 43.03], [-34.5, 43.25], [-34.25, 43.15], [-34.0, 43.25], [-33.47, 43.03], [-33.32, 42.68], [-32.97, 42.53], [-32.82, 42.18], [-32.47, 42.03], [-32.32, 41.68], [-32.0, 41.54], [-31.5, 41.75], [-30.97, 41.53], [-30.82, 41.18], [-30.47, 41.03], [-30.32, 40.68], [-29.97, 40.53], [-29.82, 40.18], [-29.47, 40.03], [-29.32, 39.68], [-28.97, 39.53], [-28.82, 39.18], [-28.75, 39.15], [-28.5, 39.25], [-28.25, 39.15], [-28.0, 39.25], [-27.47, 39.03], [-27.32, 38.68], [-26.97, 38.53], [-26.75, 38.0], [-26.97, 37.47], [-27.32, 37.32], [-27.47, 36.97], [-27.82, 36.82], [-27.97, 36.47], [-28.5, 36.25], [-29.03, 36.47], [-29.2, 36.88], [-29.5, 36.75], [-29.75, 36.85], [-29.82, 36.82], [-29.85, 36.75], [-29.75, 36.5], [-29.97, 35.97], [-30.5, 35.75], [-30.75, 35.85], [-31.0, 35.75], [-31.25, 35.85], [-31.5, 35.75], [-32.0, 35.96], [-32.5, 35.75], [-32.75, 35.85], [-33.0, 35.75], [-33.25, 35.85], [-33.5, 35.75], [-33.75, 35.85], [-34.0, 35.75], [-34.25, 35.85], [-34.5, 35.75], [-35.03, 35.97], [-35.18, 36.32], [-35.53, 36.47], [-35.75, 37.0], [-35.65, 37.25], [-35.68, 37.32], [-35.75, 37.35], [-36.0, 37.25], [-36.25, 37.35], [-36.5, 37.25], [-37.03, 37.47], [-37.25, 38.0], [-37.12, 38.3], [-37.25, 38.35], [-37.5, 38.25], [-38.03, 38.47], [-38.25, 39.0], [-38.04, 39.5], [-38.25, 40.0], [-38.15, 40.25], [-38.25, 40.5], [-38.03, 41.03]]]]}, "2011-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.03, 41.03], [-37.5, 41.25], [-37.25, 41.15], [-37.18, 41.18], [-37.03, 41.53], [-36.68, 41.68], [-36.53, 42.03], [-36.0, 42.25], [-35.75, 42.15], [-35.68, 42.18], [-35.53, 42.53], [-35.18, 42.68], [-35.03, 43.03], [-34.5, 43.25], [-34.25, 43.15], [-34.0, 43.25], [-33.47, 43.03], [-33.32, 42.68], [-32.97, 42.53], [-32.82, 42.18], [-32.47, 42.03], [-32.32, 41.68], [-32.0, 41.54], [-31.5, 41.75], [-30.97, 41.53], [-30.82, 41.18], [-30.47, 41.03], [-30.32, 40.68], [-29.97, 40.53], [-29.82, 40.18], [-29.47, 40.03], [-29.32, 39.68], [-28.97, 39.53], [-28.75, 39.0], [-28.85, 38.75], [-28.75, 38.5], [-28.85, 38.25], [-28.75, 38.0], [-28.85, 37.75], [-28.75, 37.5], [-28.97, 36.97], [-29.5, 36.75], [-29.75, 36.85], [-29.82, 36.82], [-29.85, 36.75], [-29.75, 36.5], [-29.97, 35.97], [-30.5, 35.75], [-30.75, 35.85], [-31.0, 35.75], [-31.25, 35.85], [-31.5, 35.75], [-32.0, 35.96], [-32.5, 35.75], [-32.75, 35.85], [-33.0, 35.75], [-33.25, 35.85], [-33.5, 35.75], [-33.75, 35.85], [-34.0, 35.75], [-34.25, 35.85], [-34.5, 35.75], [-35.03, 35.97], [-35.18, 36.32], [-35.53, 36.47], [-35.75, 37.0], [-35.65, 37.25], [-35.68, 37.32], [-35.75, 37.35], [-36.0, 37.25], [-36.25, 37.35], [-36.5, 37.25], [-37.03, 37.47], [-37.25, 38.0], [-37.12, 38.3], [-37.25, 38.35], [-37.5, 38.25], [-38.03, 38.47], [-38.25, 39.0], [-38.04, 39.5], [-38.25, 40.0], [-38.15, 40.25], [-38.25, 40.5], [-38.03, 41.03]]]]}, "2011-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-35.75, 37.0], [-35.53, 37.53], [-35.0, 37.75], [-34.75, 37.65], [-34.68, 37.68], [-34.53, 38.03], [-34.0, 38.25], [-33.47, 38.03], [-33.32, 37.68], [-33.25, 37.65], [-33.0, 37.75], [-32.75, 37.65], [-32.68, 37.68], [-32.65, 37.75], [-32.68, 37.82], [-33.03, 37.97], [-33.18, 38.32], [-33.53, 38.47], [-33.75, 39.0], [-33.65, 39.25], [-33.75, 39.5], [-33.53, 40.03], [-33.18, 40.18], [-33.15, 40.25], [-33.25, 40.5], [-33.03, 41.03], [-32.5, 41.25], [-31.97, 41.03], [-31.82, 40.68], [-31.75, 40.65], [-31.5, 40.75], [-30.97, 40.53], [-30.82, 40.18], [-30.75, 40.15], [-30.5, 40.25], [-29.97, 40.03], [-29.82, 39.68], [-29.47, 39.53], [-29.25, 39.0], [-29.35, 38.75], [-29.25, 38.5], [-29.35, 38.25], [-29.25, 38.0], [-29.35, 37.75], [-29.25, 37.5], [-29.47, 36.97], [-29.82, 36.82], [-29.85, 36.75], [-29.75, 36.5], [-29.97, 35.97], [-30.5, 35.75], [-30.75, 35.85], [-31.0, 35.75], [-31.25, 35.85], [-31.5, 35.75], [-32.0, 35.96], [-32.5, 35.75], [-32.75, 35.85], [-33.0, 35.75], [-33.25, 35.85], [-33.5, 35.75], [-33.75, 35.85], [-34.0, 35.75], [-34.25, 35.85], [-34.5, 35.75], [-35.03, 35.97], [-35.18, 36.32], [-35.53, 36.47], [-35.75, 37.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.111109101712316}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5327043823005178}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.97701776440931, 24.175886071615082, 24.436587551283935, 24.53237001623154, 24.509965151068457, 24.41900835219866]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.441740710185286, 24.837136120409355, 25.277671299688222, 25.45034499735624, 25.439321559993516, 25.24540561806441]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4085201771361378, 1.425558279796763, 1.600199795981877, 1.5757504707662098, 1.5704716100311154, 1.3056438456543469]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5720339867106645, 1.630695463959512, 2.111109101712316, 1.9900474142518192, 1.9724330721143701, 1.4855210761256217]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.467794681498704, 1.4248426037439226, 1.5512776282677272, 1.6459704183936243, 1.6462022313717544, 1.5203329523878253]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5997279947528935, 1.6222184610058166, 1.9180815209534134, 2.144620770626932, 2.1505667272302484, 1.8845148305344008]}}