{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:55.814350", "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-Jan-03_to_2018-Jan-06_43.5_-19.5"}, "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": 2018010001408}, "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": "January 03 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 06 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": 51983.730755063036}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -19.5}, "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": 43.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -20.25], [42.75, -20.0], [42.85, -19.75], [42.75, -19.5], [42.97, -18.97], [43.5, -18.75], [44.03, -18.97], [44.25, -19.5], [44.15, -19.75], [44.25, -20.0], [44.15, -20.25], [44.25, -20.5], [44.15, -20.75], [44.25, -21.0], [44.03, -21.53], [43.5, -21.75], [42.97, -21.53], [42.75, -21.0], [42.85, -20.75], [42.75, -20.5], [42.85, -20.25]]]]}, "2018-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.35, -20.25], [42.25, -20.0], [42.35, -19.75], [42.25, -19.5], [42.47, -18.97], [43.0, -18.75], [43.25, -18.85], [43.5, -18.75], [43.75, -18.85], [44.0, -18.75], [44.53, -18.97], [44.75, -19.5], [44.65, -19.75], [44.75, -20.0], [44.65, -20.25], [44.75, -20.5], [44.65, -20.75], [44.75, -21.0], [44.65, -21.25], [44.75, -21.5], [44.65, -21.75], [44.75, -22.0], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.82, -21.68], [42.47, -21.53], [42.25, -21.0], [42.35, -20.75], [42.25, -20.5], [42.35, -20.25]]]]}, "2018-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.35, -20.25], [42.25, -20.0], [42.35, -19.75], [42.25, -19.5], [42.47, -18.97], [43.0, -18.75], [43.25, -18.85], [43.5, -18.75], [43.75, -18.85], [44.0, -18.75], [44.53, -18.97], [44.75, -19.5], [44.65, -19.75], [44.75, -20.0], [44.65, -20.25], [44.75, -20.5], [44.65, -20.75], [44.75, -21.0], [44.65, -21.25], [44.75, -21.5], [44.65, -21.75], [44.75, -22.0], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.82, -21.68], [42.47, -21.53], [42.25, -21.0], [42.35, -20.75], [42.25, -20.5], [42.35, -20.25]]]]}, "2018-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.35, -20.25], [42.25, -20.0], [42.35, -19.75], [42.25, -19.5], [42.47, -18.97], [43.0, -18.75], [43.25, -18.85], [43.5, -18.75], [43.75, -18.85], [44.0, -18.75], [44.53, -18.97], [44.75, -19.5], [44.65, -19.75], [44.75, -20.0], [44.65, -20.25], [44.75, -20.5], [44.65, -20.75], [44.75, -21.0], [44.65, -21.25], [44.75, -21.5], [44.65, -21.75], [44.75, -22.0], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.82, -21.68], [42.47, -21.53], [42.25, -21.0], [42.35, -20.75], [42.25, -20.5], [42.35, -20.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1852187229735023}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9775215500781498}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.64546472599511, 29.79806909421376, 29.49503143568853, 29.12322664587174]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.73907659664701, 31.351366997004845, 30.479027053539426, 30.450993185630466]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1237606772012754, 2.318010193540507, 2.0714626476293807, 1.7328164474816452]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1967169789742798, 3.1852187229735023, 2.8236254516925783, 2.3516650540204296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2969491291322184, 2.2366119842368146, 2.0533471162786054, 1.730459379761621]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.331498136805013, 3.1743208542439083, 2.7371872232667314, 2.0496785159805966]}}