{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:08.282772", "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": "2018-Sep-20_to_2018-Sep-23_44.0_2.5"}, "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": 2018090002434}, "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": "September 20 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2018"}, "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": 64858.97500692311}, "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": ["Somalia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "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": 2.5}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 1.5], [41.47, 2.03], [41.82, 2.18], [41.97, 2.53], [42.32, 2.68], [42.47, 3.03], [43.0, 3.25], [43.5, 3.04], [44.0, 3.25], [44.53, 3.03], [44.75, 2.5], [44.53, 1.97], [44.18, 1.82], [44.03, 1.47], [43.68, 1.32], [43.65, 1.25], [43.75, 1.0], [43.53, 0.47], [43.18, 0.32], [43.03, -0.03], [42.5, -0.25], [41.97, -0.03], [41.75, 0.5], [41.85, 0.75], [41.82, 0.82], [41.47, 0.97], [41.25, 1.5]]]]}, "2018-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 1.5], [41.47, 2.03], [41.82, 2.18], [41.97, 2.53], [42.32, 2.68], [42.47, 3.03], [43.0, 3.25], [43.5, 3.04], [44.0, 3.25], [44.25, 3.15], [44.32, 3.18], [44.47, 3.53], [44.82, 3.68], [44.97, 4.03], [45.5, 4.25], [45.75, 4.15], [46.0, 4.25], [46.53, 4.03], [46.75, 3.5], [46.65, 3.25], [46.75, 3.0], [46.65, 2.75], [46.75, 2.5], [46.53, 1.97], [46.0, 1.75], [45.75, 1.85], [45.68, 1.82], [45.53, 1.47], [45.0, 1.25], [44.47, 1.47], [44.32, 1.82], [44.25, 1.85], [44.18, 1.82], [44.03, 1.47], [43.68, 1.32], [43.65, 1.25], [43.75, 1.0], [43.53, 0.47], [43.18, 0.32], [43.03, -0.03], [42.5, -0.25], [41.97, -0.03], [41.75, 0.5], [41.85, 0.75], [41.82, 0.82], [41.47, 0.97], [41.25, 1.5]]]]}, "2018-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 1.5], [41.47, 2.03], [41.82, 2.18], [41.97, 2.53], [42.32, 2.68], [42.47, 3.03], [43.0, 3.25], [43.5, 3.04], [44.0, 3.25], [44.25, 3.15], [44.32, 3.18], [44.47, 3.53], [44.82, 3.68], [44.97, 4.03], [45.5, 4.25], [45.75, 4.15], [46.0, 4.25], [46.53, 4.03], [46.75, 3.5], [46.65, 3.25], [46.75, 3.0], [46.65, 2.75], [46.75, 2.5], [46.53, 1.97], [46.0, 1.75], [45.75, 1.85], [45.68, 1.82], [45.53, 1.47], [45.0, 1.25], [44.47, 1.47], [44.32, 1.82], [44.25, 1.85], [44.18, 1.82], [44.03, 1.47], [43.68, 1.32], [43.65, 1.25], [43.75, 1.0], [43.53, 0.47], [43.18, 0.32], [43.03, -0.03], [42.5, -0.25], [41.97, -0.03], [41.75, 0.5], [41.85, 0.75], [41.82, 0.82], [41.47, 0.97], [41.25, 1.5]]]]}, "2018-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, 1.97], [43.25, 2.5], [43.47, 3.03], [44.0, 3.25], [44.25, 3.15], [44.32, 3.18], [44.47, 3.53], [44.82, 3.68], [44.97, 4.03], [45.5, 4.25], [45.75, 4.15], [46.0, 4.25], [46.53, 4.03], [46.75, 3.5], [46.65, 3.25], [46.75, 3.0], [46.65, 2.75], [46.75, 2.5], [46.53, 1.97], [46.0, 1.75], [45.75, 1.85], [45.68, 1.82], [45.53, 1.47], [45.0, 1.25], [44.47, 1.47], [44.32, 1.82], [44.25, 1.85], [44.0, 1.75], [43.47, 1.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.276879176505986}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9244165872603354}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.365200871307366, 27.929125559191164, 27.923440974628193, 27.658793619425126]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.05306402109437, 29.391580452944538, 29.156150662538778, 28.531390506174546]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0392966036024363, 0.9214835841134216, 0.871632459792376, 0.9159056384557196]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2503553065241704, 1.276879176505986, 1.0087270216538968, 1.26030155560818]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5679590549925282, 1.4783489867141035, 1.3893792788614967, 1.611274649499027]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9589114979930238, 1.8366575156165013, 1.6283494261826825, 2.0531009659559785]}}