{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:55.789581", "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": "2013-Mar-19_to_2013-Mar-21_17.5_26.5"}, "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": 2013030002162}, "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 19 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 21 2013"}, "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": 64444.129396443255}, "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": ["Chad", "Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 26.5}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.85, 23.25], [14.75, 23.5], [14.85, 23.75], [14.75, 24.0], [14.85, 24.25], [14.75, 24.5], [14.85, 24.75], [14.75, 25.0], [14.85, 25.25], [14.75, 25.5], [14.85, 25.75], [14.75, 26.0], [14.97, 26.53], [15.5, 26.75], [16.0, 26.54], [16.32, 26.68], [16.47, 27.03], [17.0, 27.25], [17.25, 27.15], [17.32, 27.18], [17.47, 27.53], [17.82, 27.68], [17.97, 28.03], [18.5, 28.25], [19.03, 28.03], [19.25, 27.5], [19.03, 26.97], [18.68, 26.82], [18.65, 26.75], [18.75, 26.5], [18.53, 25.97], [18.18, 25.82], [18.03, 25.47], [17.5, 25.25], [17.25, 25.35], [17.18, 25.32], [17.03, 24.97], [16.68, 24.82], [16.54, 24.5], [16.75, 24.0], [16.54, 23.5], [16.75, 23.0], [16.65, 22.75], [16.75, 22.5], [16.65, 22.25], [16.75, 22.0], [16.53, 21.47], [16.0, 21.25], [15.47, 21.47], [15.32, 21.82], [14.97, 21.97], [14.75, 22.5], [14.85, 22.75], [14.75, 23.0], [14.85, 23.25]]]]}, "2013-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.85, 23.25], [14.75, 23.5], [14.85, 23.75], [14.75, 24.0], [14.85, 24.25], [14.75, 24.5], [14.85, 24.75], [14.75, 25.0], [14.85, 25.25], [14.75, 25.5], [14.85, 25.75], [14.75, 26.0], [14.97, 26.53], [15.5, 26.75], [16.0, 26.54], [16.32, 26.68], [16.47, 27.03], [17.0, 27.25], [17.25, 27.15], [17.32, 27.18], [17.47, 27.53], [17.82, 27.68], [17.97, 28.03], [18.5, 28.25], [19.03, 28.03], [19.25, 27.5], [19.03, 26.97], [18.68, 26.82], [18.65, 26.75], [18.75, 26.5], [18.53, 25.97], [18.18, 25.82], [18.03, 25.47], [17.5, 25.25], [17.25, 25.35], [17.18, 25.32], [17.03, 24.97], [16.68, 24.82], [16.54, 24.5], [16.75, 24.0], [16.54, 23.5], [16.75, 23.0], [16.65, 22.75], [16.75, 22.5], [16.65, 22.25], [16.75, 22.0], [16.53, 21.47], [16.0, 21.25], [15.47, 21.47], [15.32, 21.82], [14.97, 21.97], [14.75, 22.5], [14.85, 22.75], [14.75, 23.0], [14.85, 23.25]]]]}, "2013-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.85, 23.25], [14.75, 23.5], [14.85, 23.75], [14.75, 24.0], [14.85, 24.25], [14.75, 24.5], [14.85, 24.75], [14.75, 25.0], [14.85, 25.25], [14.75, 25.5], [14.85, 25.75], [14.75, 26.0], [14.97, 26.53], [15.5, 26.75], [16.0, 26.54], [16.32, 26.68], [16.47, 27.03], [17.0, 27.25], [17.25, 27.15], [17.32, 27.18], [17.47, 27.53], [17.82, 27.68], [17.97, 28.03], [18.5, 28.25], [19.03, 28.03], [19.25, 27.5], [19.03, 26.97], [18.68, 26.82], [18.65, 26.75], [18.75, 26.5], [18.53, 25.97], [18.18, 25.82], [18.03, 25.47], [17.5, 25.25], [17.25, 25.35], [17.18, 25.32], [17.03, 24.97], [16.68, 24.82], [16.54, 24.5], [16.75, 24.0], [16.54, 23.5], [16.75, 23.0], [16.65, 22.75], [16.75, 22.5], [16.65, 22.25], [16.75, 22.0], [16.53, 21.47], [16.0, 21.25], [15.47, 21.47], [15.32, 21.82], [14.97, 21.97], [14.75, 22.5], [14.85, 22.75], [14.75, 23.0], [14.85, 23.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.726637391581562}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.398120896697232}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.698919418710773, 26.81036182803325, 25.311454418477695]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.325645423184767, 28.67213591899656, 26.70772326276375]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.623154588796158, 7.611108149147081, 5.960099952148455]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.559531718312712, 8.726637391581562, 7.222724337201782]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5364632866404018, 2.0428722195019775, 1.5780636105198318]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8651457000897456, 2.38553818606078, 1.8277272130972861]}}