{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:17.975081", "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-Apr-15_to_2011-Apr-17_0.5_31.5"}, "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": 2011040002185}, "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": "April 15 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 17 2011"}, "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": 50214.29265480873}, "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": ["Algeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 31.5}, "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": 0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 2.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 32.0], [-1.53, 32.53], [-1.0, 32.75], [-0.75, 32.65], [-0.5, 32.75], [-0.25, 32.65], [0.0, 32.75], [0.25, 32.65], [0.5, 32.75], [1.03, 32.53], [1.18, 32.18], [1.25, 32.15], [1.5, 32.25], [2.03, 32.03], [2.18, 31.68], [2.53, 31.53], [2.75, 31.0], [2.53, 30.47], [2.18, 30.32], [2.03, 29.97], [1.5, 29.75], [1.25, 29.85], [1.0, 29.75], [0.75, 29.85], [0.5, 29.75], [0.25, 29.85], [0.0, 29.75], [-0.53, 29.97], [-0.68, 30.32], [-1.03, 30.47], [-1.25, 31.0], [-1.15, 31.25], [-1.18, 31.32], [-1.53, 31.47], [-1.75, 32.0]]]]}, "2011-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 32.0], [-1.53, 32.53], [-1.0, 32.75], [-0.75, 32.65], [-0.5, 32.75], [-0.25, 32.65], [0.0, 32.75], [0.25, 32.65], [0.5, 32.75], [1.03, 32.53], [1.18, 32.18], [1.25, 32.15], [1.5, 32.25], [2.03, 32.03], [2.18, 31.68], [2.53, 31.53], [2.75, 31.0], [2.53, 30.47], [2.18, 30.32], [2.03, 29.97], [1.5, 29.75], [1.25, 29.85], [1.0, 29.75], [0.75, 29.85], [0.5, 29.75], [0.25, 29.85], [0.0, 29.75], [-0.53, 29.97], [-0.68, 30.32], [-1.03, 30.47], [-1.25, 31.0], [-1.15, 31.25], [-1.18, 31.32], [-1.53, 31.47], [-1.75, 32.0]]]]}, "2011-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 32.0], [-1.53, 32.53], [-1.0, 32.75], [-0.75, 32.65], [-0.5, 32.75], [-0.25, 32.65], [0.0, 32.75], [0.25, 32.65], [0.5, 32.75], [1.03, 32.53], [1.18, 32.18], [1.25, 32.15], [1.5, 32.25], [2.03, 32.03], [2.18, 31.68], [2.53, 31.53], [2.75, 31.0], [2.53, 30.47], [2.18, 30.32], [2.03, 29.97], [1.5, 29.75], [1.25, 29.85], [1.0, 29.75], [0.75, 29.85], [0.5, 29.75], [0.25, 29.85], [0.0, 29.75], [-0.53, 29.97], [-0.68, 30.32], [-1.03, 30.47], [-1.25, 31.0], [-1.15, 31.25], [-1.18, 31.32], [-1.53, 31.47], [-1.75, 32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.735795929653932}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.0344894378545}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.840128096559113, 25.704368351323694, 26.077903604165044]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.613760291526944, 26.74581691657596, 27.193806480033402]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.22981668217764, 4.873197212556605, 5.0004544188292535]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.735795929653932, 5.602840504581081, 5.411954853029556]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5407934851281437, 1.4381092486472393, 1.4542755914364307]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6707180697362964, 1.6751797035926783, 1.5759257782711633]}}