{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:16.053603", "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": "2021-Apr-01_to_2021-Apr-06_50.0_10.0"}, "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": 2021040001353}, "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 01 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 06 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 57922.62843216039}, "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"]}, "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": 10.0}, "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": 50.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 46.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 11.03], [49.82, 11.18], [49.97, 11.53], [50.5, 11.75], [51.03, 11.53], [51.25, 11.0], [51.03, 10.47], [50.68, 10.32], [50.65, 10.25], [50.75, 10.0], [50.53, 9.47], [50.0, 9.25], [49.47, 9.47], [49.25, 10.0], [49.35, 10.25], [49.25, 10.5], [49.47, 11.03]]]]}, "2021-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.53, 7.47], [49.0, 7.25], [48.75, 7.35], [48.5, 7.25], [47.97, 7.47], [47.75, 8.0], [47.97, 8.53], [48.5, 8.75], [48.75, 8.65], [49.0, 8.75], [49.53, 8.53], [49.75, 8.0], [49.53, 7.47]]], [[[46.75, 10.5], [46.97, 11.03], [47.5, 11.25], [47.75, 11.15], [48.0, 11.25], [48.53, 11.03], [48.7, 10.63], [49.0, 10.75], [49.25, 10.65], [49.32, 10.68], [49.47, 11.03], [49.82, 11.18], [49.97, 11.53], [50.5, 11.75], [51.03, 11.53], [51.25, 11.0], [51.03, 10.47], [50.68, 10.32], [50.65, 10.25], [50.75, 10.0], [50.53, 9.47], [50.0, 9.25], [49.75, 9.35], [49.68, 9.32], [49.53, 8.97], [49.0, 8.75], [48.47, 8.97], [48.25, 9.5], [48.35, 9.75], [48.3, 9.88], [48.0, 9.75], [47.75, 9.85], [47.5, 9.75], [46.97, 9.97], [46.75, 10.5]]]]}, "2021-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 10.5], [46.97, 11.03], [47.5, 11.25], [47.75, 11.15], [48.0, 11.25], [48.53, 11.03], [48.68, 10.68], [48.75, 10.65], [49.0, 10.75], [49.25, 10.65], [49.32, 10.68], [49.47, 11.03], [49.82, 11.18], [49.97, 11.53], [50.5, 11.75], [51.03, 11.53], [51.25, 11.0], [51.03, 10.47], [50.68, 10.32], [50.65, 10.25], [50.75, 10.0], [50.53, 9.47], [50.0, 9.25], [49.75, 9.35], [49.68, 9.32], [49.65, 9.25], [49.75, 9.0], [49.54, 8.5], [49.75, 8.0], [49.53, 7.47], [49.0, 7.25], [48.75, 7.35], [48.5, 7.25], [47.97, 7.47], [47.82, 7.82], [47.47, 7.97], [47.25, 8.5], [47.35, 8.75], [47.25, 9.0], [47.46, 9.5], [47.32, 9.82], [46.97, 9.97], [46.75, 10.5]]]]}, "2021-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.38, 9.7], [47.32, 9.82], [46.97, 9.97], [46.75, 10.5], [46.97, 11.03], [47.5, 11.25], [47.75, 11.15], [48.0, 11.25], [48.53, 11.03], [48.68, 10.68], [48.75, 10.65], [49.0, 10.75], [49.25, 10.65], [49.5, 10.75], [49.75, 10.65], [50.0, 10.75], [50.53, 10.53], [50.75, 10.0], [50.53, 9.47], [50.0, 9.25], [49.75, 9.35], [49.68, 9.32], [49.65, 9.25], [49.75, 9.0], [49.54, 8.5], [49.75, 8.0], [49.53, 7.47], [49.0, 7.25], [48.75, 7.35], [48.5, 7.25], [47.97, 7.47], [47.82, 7.82], [47.5, 7.96], [47.0, 7.75], [46.47, 7.97], [46.25, 8.5], [46.47, 9.03], [46.82, 9.18], [46.97, 9.53], [47.38, 9.7]]]]}, "2021-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.38, 9.7], [47.25, 10.0], [47.47, 10.53], [48.0, 10.75], [48.25, 10.65], [48.5, 10.75], [48.75, 10.65], [49.0, 10.75], [49.53, 10.53], [49.75, 10.0], [49.65, 9.75], [49.75, 9.5], [49.65, 9.25], [49.75, 9.0], [49.54, 8.5], [49.75, 8.0], [49.53, 7.47], [49.0, 7.25], [48.75, 7.35], [48.5, 7.25], [47.97, 7.47], [47.82, 7.82], [47.5, 7.96], [47.0, 7.75], [46.47, 7.97], [46.25, 8.5], [46.47, 9.03], [46.82, 9.18], [46.97, 9.53], [47.38, 9.7]]]]}, "2021-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.5, 9.75], [47.75, 9.65], [48.0, 9.75], [48.53, 9.53], [48.75, 9.0], [48.53, 8.47], [48.0, 8.25], [47.75, 8.35], [47.68, 8.32], [47.53, 7.97], [47.0, 7.75], [46.47, 7.97], [46.25, 8.5], [46.47, 9.03], [46.82, 9.18], [46.97, 9.53], [47.5, 9.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2076427941534575}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.45957014661441}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.797166022379145, 26.175006322325316, 26.591497340418755, 26.642988407388373, 27.141384744300012, 28.130172111921354]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.347669784116135, 27.92252527804618, 28.123832930842525, 28.63846620452358, 29.124727777522594, 28.61797982664683]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4091890430426208, 1.565366087172538, 1.5493921462750242, 1.406186558035328, 1.3976928256610501, 1.2189488429949809]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5168137260147887, 2.2076427941534575, 2.0683021167683933, 1.9531730087040842, 1.761342839078793, 1.2991815822892931]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4194263903718751, 1.634261243095177, 1.6713854184403567, 1.5067145296949302, 1.5607379838218316, 1.2462490515358662]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5195997144419076, 2.29453710658794, 2.277167995140491, 1.901893727660008, 1.850668291842885, 1.3339671504082768]}}