{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:21.097996", "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": "2010-Mar-18_to_2010-Mar-20_356.5_43.5"}, "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": 2010030001843}, "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": "March 18 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 20 2010"}, "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": 64832.50616242162}, "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": ["France", "Spain"]}, "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": ["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": ["Bay of Biscay"]}, "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": 43.5}, "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": 356.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 358.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.75, 44.0], [-7.53, 44.53], [-7.0, 44.75], [-6.47, 44.53], [-6.32, 44.18], [-6.25, 44.15], [-6.0, 44.25], [-5.75, 44.15], [-5.5, 44.25], [-5.25, 44.15], [-5.18, 44.18], [-5.03, 44.53], [-4.5, 44.75], [-4.25, 44.65], [-4.18, 44.68], [-4.03, 45.03], [-3.5, 45.25], [-3.25, 45.15], [-3.18, 45.18], [-3.03, 45.53], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.47, 45.53], [-1.25, 45.0], [-1.35, 44.75], [-1.25, 44.5], [-1.35, 44.25], [-1.32, 44.18], [-0.97, 44.03], [-0.75, 43.5], [-0.97, 42.97], [-1.5, 42.75], [-1.75, 42.85], [-2.0, 42.75], [-2.53, 42.97], [-2.68, 43.32], [-2.75, 43.35], [-2.82, 43.32], [-2.85, 43.25], [-2.75, 43.0], [-2.85, 42.75], [-2.75, 42.5], [-2.97, 41.97], [-3.32, 41.82], [-3.47, 41.47], [-4.0, 41.25], [-4.53, 41.47], [-4.75, 42.0], [-4.65, 42.25], [-4.75, 42.5], [-4.65, 42.75], [-4.7, 42.88], [-4.82, 42.82], [-4.97, 42.47], [-5.5, 42.25], [-6.03, 42.47], [-6.18, 42.82], [-6.25, 42.85], [-6.5, 42.75], [-6.75, 42.85], [-6.82, 42.82], [-6.97, 42.47], [-7.5, 42.25], [-8.03, 42.47], [-8.25, 43.0], [-8.03, 43.53], [-7.68, 43.68], [-7.65, 43.75], [-7.75, 44.0]]]]}, "2010-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.75, 44.0], [-7.53, 44.53], [-7.0, 44.75], [-6.47, 44.53], [-6.32, 44.18], [-6.25, 44.15], [-6.0, 44.25], [-5.75, 44.15], [-5.5, 44.25], [-5.25, 44.15], [-5.18, 44.18], [-5.03, 44.53], [-4.5, 44.75], [-4.25, 44.65], [-4.18, 44.68], [-4.03, 45.03], [-3.5, 45.25], [-3.25, 45.15], [-3.18, 45.18], [-3.03, 45.53], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.47, 45.53], [-1.25, 45.0], [-1.35, 44.75], [-1.25, 44.5], [-1.35, 44.25], [-1.32, 44.18], [-0.97, 44.03], [-0.75, 43.5], [-0.97, 42.97], [-1.5, 42.75], [-1.75, 42.85], [-2.0, 42.75], [-2.53, 42.97], [-2.68, 43.32], [-2.75, 43.35], [-2.82, 43.32], [-2.85, 43.25], [-2.75, 43.0], [-2.85, 42.75], [-2.75, 42.5], [-2.97, 41.97], [-3.32, 41.82], [-3.47, 41.47], [-4.0, 41.25], [-4.53, 41.47], [-4.75, 42.0], [-4.65, 42.25], [-4.75, 42.5], [-4.65, 42.75], [-4.7, 42.88], [-4.82, 42.82], [-4.97, 42.47], [-5.5, 42.25], [-6.03, 42.47], [-6.18, 42.82], [-6.25, 42.85], [-6.5, 42.75], [-6.75, 42.85], [-6.82, 42.82], [-6.97, 42.47], [-7.5, 42.25], [-8.03, 42.47], [-8.25, 43.0], [-8.03, 43.53], [-7.68, 43.68], [-7.65, 43.75], [-7.75, 44.0]]]]}, "2010-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.75, 44.0], [-7.53, 44.53], [-7.0, 44.75], [-6.47, 44.53], [-6.32, 44.18], [-6.25, 44.15], [-6.0, 44.25], [-5.75, 44.15], [-5.5, 44.25], [-5.25, 44.15], [-5.18, 44.18], [-5.03, 44.53], [-4.5, 44.75], [-4.25, 44.65], [-4.18, 44.68], [-4.03, 45.03], [-3.5, 45.25], [-3.25, 45.15], [-3.18, 45.18], [-3.03, 45.53], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.47, 45.53], [-1.25, 45.0], [-1.35, 44.75], [-1.25, 44.5], [-1.35, 44.25], [-1.32, 44.18], [-0.97, 44.03], [-0.75, 43.5], [-0.97, 42.97], [-1.5, 42.75], [-1.75, 42.85], [-2.0, 42.75], [-2.53, 42.97], [-2.68, 43.32], [-2.75, 43.35], [-2.82, 43.32], [-2.85, 43.25], [-2.75, 43.0], [-2.85, 42.75], [-2.75, 42.5], [-2.97, 41.97], [-3.32, 41.82], [-3.47, 41.47], [-4.0, 41.25], [-4.53, 41.47], [-4.75, 42.0], [-4.65, 42.25], [-4.75, 42.5], [-4.65, 42.75], [-4.7, 42.88], [-4.82, 42.82], [-4.97, 42.47], [-5.5, 42.25], [-6.03, 42.47], [-6.18, 42.82], [-6.25, 42.85], [-6.5, 42.75], [-6.75, 42.85], [-6.82, 42.82], [-6.97, 42.47], [-7.5, 42.25], [-8.03, 42.47], [-8.25, 43.0], [-8.03, 43.53], [-7.68, 43.68], [-7.65, 43.75], [-7.75, 44.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.377149284415566}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.409345226991614}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.745995061203246, 14.44913433435363, 14.31909008516385]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.70326103399168, 17.00067656265668, 17.700027750305765]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.994265376804674, 3.6727610933849615, 3.5610092107852065]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.572811216043931, 5.419496204693303, 6.377149284415566]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5462439926082316, 1.8749751939741255, 1.7069974769125789]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.966184627956905, 2.5011288336842212, 2.4949335325260833]}}