{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:59.349167", "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": "2020-Aug-01_to_2020-Aug-05_34.0_-4.0"}, "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": 2020080000063}, "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": "August 01 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 67795.50577303456}, "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": ["Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": -4.0}, "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": 34.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, -3.25], [34.53, -3.47], [34.75, -4.0], [34.53, -4.53], [34.0, -4.75], [33.47, -4.53], [33.25, -4.0], [33.47, -3.47], [34.0, -3.25]]]]}, "2020-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.85, -4.25], [31.75, -4.0], [31.85, -3.75], [31.75, -3.5], [31.97, -2.97], [32.32, -2.82], [32.47, -2.47], [33.0, -2.25], [33.25, -2.35], [33.5, -2.25], [34.03, -2.47], [34.25, -3.0], [34.15, -3.25], [34.18, -3.32], [34.25, -3.35], [34.5, -3.25], [35.03, -3.47], [35.25, -4.0], [35.03, -4.53], [34.68, -4.68], [34.65, -4.75], [34.75, -5.0], [34.53, -5.53], [34.18, -5.68], [34.03, -6.03], [33.68, -6.18], [33.53, -6.53], [33.0, -6.75], [32.47, -6.53], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2020-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.85, -4.25], [31.75, -4.0], [31.85, -3.75], [31.75, -3.5], [31.97, -2.97], [32.32, -2.82], [32.47, -2.47], [33.0, -2.25], [33.25, -2.35], [33.5, -2.25], [34.03, -2.47], [34.25, -3.0], [34.15, -3.25], [34.18, -3.32], [34.25, -3.35], [34.5, -3.25], [35.03, -3.47], [35.25, -4.0], [35.03, -4.53], [34.68, -4.68], [34.65, -4.75], [34.75, -5.0], [34.53, -5.53], [34.18, -5.68], [34.03, -6.03], [33.68, -6.18], [33.53, -6.53], [33.0, -6.75], [32.47, -6.53], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2020-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.85, -4.25], [31.75, -4.0], [31.85, -3.75], [31.75, -3.5], [31.97, -2.97], [32.32, -2.82], [32.47, -2.47], [33.0, -2.25], [33.25, -2.35], [33.5, -2.25], [34.03, -2.47], [34.25, -3.0], [34.15, -3.25], [34.18, -3.32], [34.25, -3.35], [34.5, -3.25], [35.03, -3.47], [35.25, -4.0], [35.03, -4.53], [34.68, -4.68], [34.65, -4.75], [34.75, -5.0], [34.53, -5.53], [34.18, -5.68], [34.03, -6.03], [33.68, -6.18], [33.53, -6.53], [33.0, -6.75], [32.47, -6.53], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2020-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, -3.25], [34.53, -3.47], [34.75, -4.0], [34.53, -4.53], [34.0, -4.75], [33.47, -4.53], [33.25, -4.0], [33.47, -3.47], [34.0, -3.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.428736652267105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.583152282822141}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.912454828709713, 21.598824039682597, 21.843916295906524, 21.96902829299279, 23.10288259243606]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.912454828709713, 20.68149293736326, 21.07485589949306, 21.335441260381742, 23.10288259243606]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2686038971771154, -1.7588964846877284, -1.5570122134085589, -1.4631022586822242, -1.2475102856012086]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2686038971771154, -2.428736652267105, -1.96078422922227, -2.1906881124442066, -1.2475102856012086]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3400223775528932, -1.9848713994238203, -1.7850308878632595, -1.7000185469867026, -1.3344682860593162]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3400223775528932, -2.581591265507306, -2.1082265182337343, -2.3520342559525154, -1.3344682860593162]}}