{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:45.446115", "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-04_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": 2020080000057}, "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 04 2020"}, "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": "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": 52391.635946838214}, "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, United Republic of"]}, "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": 32.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[32.323, -4.323], [32.354, -4.25], [32.25, -4.0], [32.354, -3.75], [32.25, -3.5], [32.354, -3.25], [32.25, -3.0], [32.47, -2.47], [33.0, -2.25], [33.25, -2.354], [33.5, -2.25], [34.03, -2.47], [34.25, -3.0], [34.146, -3.25], [34.177, -3.323], [34.226, -3.344], [34.25, -3.354], [34.5, -3.25], [35.03, -3.47], [35.25, -4.0], [35.03, -4.53], [34.677, -4.677], [34.53, -5.03], [34.177, -5.177], [34.146, -5.25], [34.25, -5.5], [34.03, -6.03], [33.5, -6.25], [33.25, -6.146], [33.0, -6.25], [32.75, -6.146], [32.5, -6.25], [31.97, -6.03], [31.75, -5.5], [31.854, -5.25], [31.75, -5.0], [31.97, -4.47], [32.323, -4.323]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[33.25, -4.0], [33.46966991411009, -3.4696699141100895], [34.0, -3.25], [34.53033008588991, -3.4696699141100895], [34.75, -4.0], [34.53033008588991, -4.5303300858899105], [34.0, -4.75], [33.46966991411009, -4.5303300858899105], [33.25, -4.0]]]}, "2020-08-02T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[31.853553390593273, -5.25], [31.75, -5.0], [31.96966991411009, -4.4696699141100895], [32.32322330470336, -4.323223304703363], [32.35355339059328, -4.25], [32.25, -4.0], [32.35355339059328, -3.75], [32.25, -3.5], [32.35355339059328, -3.25], [32.25, -3.0], [32.46966991411009, -2.4696699141100895], [33.0, -2.25], [33.25, -2.3535533905932744], [33.5, -2.25], [34.03033008588991, -2.4696699141100895], [34.25, -3.0], [34.14644660940672, -3.25], [34.17677669529664, -3.323223304703363], [34.25, -3.3535533905932744], [34.5, -3.25], [35.03033008588991, -3.4696699141100895], [35.25, -4.0], [35.03033008588991, -4.5303300858899105], [34.67677669529664, -4.6767766952966365], [34.53033008588991, -5.0303300858899105], [34.17677669529664, -5.1767766952966365], [34.14644660940672, -5.25], [34.25, -5.5], [34.03033008588991, -6.0303300858899105], [33.5, -6.25], [33.25, 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20.68149293736326, 21.07485589949306, 21.335441260381742]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2789201902248806, -1.825337937029173, -1.5550421821674731, -1.4945982393597017]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2789201902248806, -2.395360751619421, -1.9116987115539814, -2.136007443406868]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.335876300361595, -1.995497558367002, -1.6407304361960457, -1.5976322074346727]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.335876300361595, -2.4664064786413857, -1.8901018089958792, -2.164013111716295]}}