{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:27.289310", "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": "2019-Mar-24_to_2019-Mar-27_350.5_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": 2019030002420}, "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 24 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 27 2019"}, "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": 93789.51932714923}, "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": ["Portugal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.18, 38.68], [-13.03, 39.03], [-12.68, 39.18], [-12.53, 39.53], [-12.18, 39.68], [-12.15, 39.75], [-12.25, 40.0], [-12.03, 40.53], [-11.68, 40.68], [-11.53, 41.03], [-11.0, 41.25], [-10.47, 41.03], [-10.32, 40.68], [-10.25, 40.65], [-10.0, 40.75], [-9.75, 40.65], [-9.5, 40.75], [-8.97, 40.53], [-8.75, 40.0], [-8.85, 39.75], [-8.75, 39.5], [-8.85, 39.25], [-8.75, 39.0], [-8.97, 38.47], [-9.5, 38.25], [-10.03, 38.47], [-10.18, 38.82], [-10.25, 38.85], [-10.5, 38.75], [-10.75, 38.85], [-10.87, 38.8], [-10.75, 38.5], [-10.97, 37.97], [-11.5, 37.75], [-11.75, 37.85], [-12.0, 37.75], [-12.25, 37.85], [-12.32, 37.82], [-12.35, 37.75], [-12.25, 37.5], [-12.47, 36.97], [-13.0, 36.75], [-13.25, 36.85], [-13.5, 36.75], [-14.03, 36.97], [-14.25, 37.5], [-14.03, 38.03], [-13.68, 38.18], [-13.53, 38.53], [-13.18, 38.68]]]]}, "2019-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.18, 38.68], [-13.03, 39.03], [-12.68, 39.18], [-12.53, 39.53], [-12.18, 39.68], [-12.15, 39.75], [-12.25, 40.0], [-12.03, 40.53], [-11.68, 40.68], [-11.53, 41.03], [-11.0, 41.25], [-10.75, 41.15], [-10.5, 41.25], [-10.25, 41.15], [-10.0, 41.25], [-9.75, 41.15], [-9.5, 41.25], [-9.25, 41.15], [-9.0, 41.25], [-8.47, 41.03], [-8.25, 40.5], [-8.35, 40.25], [-8.25, 40.0], [-8.35, 39.75], [-8.25, 39.5], [-8.46, 39.0], [-8.25, 38.5], [-8.35, 38.25], [-8.25, 38.0], [-8.47, 37.47], [-9.0, 37.25], [-9.3, 37.38], [-9.47, 36.97], [-10.0, 36.75], [-10.25, 36.85], [-10.5, 36.75], [-10.75, 36.85], [-11.0, 36.75], [-11.25, 36.85], [-11.5, 36.75], [-11.75, 36.85], [-12.0, 36.75], [-12.25, 36.85], [-12.5, 36.75], [-12.75, 36.85], [-13.0, 36.75], [-13.25, 36.85], [-13.5, 36.75], [-14.03, 36.97], [-14.25, 37.5], [-14.03, 38.03], [-13.68, 38.18], [-13.53, 38.53], [-13.18, 38.68]]]]}, "2019-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.18, 38.68], [-13.03, 39.03], [-12.68, 39.18], [-12.53, 39.53], [-12.18, 39.68], [-12.15, 39.75], [-12.25, 40.0], [-12.03, 40.53], [-11.68, 40.68], [-11.53, 41.03], [-11.0, 41.25], [-10.75, 41.15], [-10.5, 41.25], [-10.25, 41.15], [-10.0, 41.25], [-9.75, 41.15], [-9.5, 41.25], [-9.25, 41.15], [-9.0, 41.25], [-8.47, 41.03], [-8.25, 40.5], [-8.35, 40.25], [-8.25, 40.0], [-8.35, 39.75], [-8.25, 39.5], [-8.46, 39.0], [-8.25, 38.5], [-8.35, 38.25], [-8.25, 38.0], [-8.47, 37.47], [-9.0, 37.25], [-9.3, 37.38], [-9.47, 36.97], [-10.0, 36.75], [-10.25, 36.85], [-10.5, 36.75], [-10.75, 36.85], [-11.0, 36.75], [-11.25, 36.85], [-11.5, 36.75], [-11.75, 36.85], [-12.0, 36.75], [-12.25, 36.85], [-12.5, 36.75], [-12.75, 36.85], [-13.0, 36.75], [-13.25, 36.85], [-13.5, 36.75], [-14.03, 36.97], [-14.25, 37.5], [-14.03, 38.03], [-13.68, 38.18], [-13.53, 38.53], [-13.18, 38.68]]]]}, "2019-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.18, 38.68], [-13.03, 39.03], [-12.68, 39.18], [-12.53, 39.53], [-12.18, 39.68], [-12.15, 39.75], [-12.25, 40.0], [-12.03, 40.53], [-11.68, 40.68], [-11.53, 41.03], [-11.0, 41.25], [-10.75, 41.15], [-10.5, 41.25], [-10.25, 41.15], [-10.0, 41.25], [-9.75, 41.15], [-9.5, 41.25], [-9.25, 41.15], [-9.0, 41.25], [-8.47, 41.03], [-8.25, 40.5], [-8.35, 40.25], [-8.25, 40.0], [-8.35, 39.75], [-8.25, 39.5], [-8.46, 39.0], [-8.25, 38.5], [-8.35, 38.25], [-8.25, 38.0], [-8.47, 37.47], [-9.0, 37.25], [-9.3, 37.38], [-9.47, 36.97], [-10.0, 36.75], [-10.25, 36.85], [-10.5, 36.75], [-10.75, 36.85], [-11.0, 36.75], [-11.25, 36.85], [-11.5, 36.75], [-11.75, 36.85], [-12.0, 36.75], [-12.25, 36.85], [-12.5, 36.75], [-12.75, 36.85], [-13.0, 36.75], [-13.25, 36.85], [-13.5, 36.75], [-14.03, 36.97], [-14.25, 37.5], [-14.03, 38.03], [-13.68, 38.18], [-13.53, 38.53], [-13.18, 38.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.384918145208303}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8655975966391698}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.65133894461843, 15.924315373794002, 16.27186988020486, 16.052770071154953]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.966388395228364, 17.592767742329784, 18.36740002940286, 17.53284850322609]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6337487072599073, 1.7801202819341568, 2.084826392040062, 1.8447981389742136]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7959526894142073, 4.065527363639092, 4.384918145208303, 4.024230955878579]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.355271499119167, 1.3468094253343763, 1.5817854596475438, 1.4541435451605351]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4623620784113192, 1.672297909715773, 2.2013439542127013, 1.7650307771938945]}}