{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:57.040460", "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": "2013-Mar-25_to_2013-Mar-31_49.5_-13.0"}, "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": 2013030002389}, "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": "March 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 31 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 54389.86798048325}, "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": ["Indian Ocean"]}, "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": -13.0}, "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": 49.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 48.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.5, -12.25], [50.03, -12.47], [50.25, -13.0], [50.03, -13.53], [49.5, -13.75], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.5, -12.25]]]]}, "2013-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.47, -10.47], [49.0, -10.25], [49.25, -10.35], [49.5, -10.25], [49.75, -10.35], [50.0, -10.25], [50.53, -10.47], [50.68, -10.82], [51.03, -10.97], [51.18, -11.32], [51.53, -11.47], [51.75, -12.0], [51.65, -12.25], [51.75, -12.5], [51.65, -12.75], [51.75, -13.0], [51.65, -13.25], [51.75, -13.5], [51.53, -14.03], [51.0, -14.25], [50.5, -14.04], [50.0, -14.25], [49.47, -14.03], [49.32, -13.68], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.32, -12.32], [49.35, -12.25], [49.32, -12.18], [49.25, -12.15], [49.0, -12.25], [48.47, -12.03], [48.25, -11.5], [48.35, -11.25], [48.25, -11.0], [48.47, -10.47]]]]}, "2013-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.47, -10.47], [49.0, -10.25], [49.25, -10.35], [49.5, -10.25], [49.75, -10.35], [50.0, -10.25], [50.53, -10.47], [50.68, -10.82], [51.03, -10.97], [51.18, -11.32], [51.53, -11.47], [51.75, -12.0], [51.65, -12.25], [51.75, -12.5], [51.65, -12.75], [51.75, -13.0], [51.65, -13.25], [51.75, -13.5], [51.53, -14.03], [51.0, -14.25], [50.5, -14.04], [50.0, -14.25], [49.47, -14.03], [49.32, -13.68], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.32, -12.32], [49.35, -12.25], [49.32, -12.18], [49.25, -12.15], [49.0, -12.25], [48.47, -12.03], [48.25, -11.5], [48.35, -11.25], [48.25, -11.0], [48.47, -10.47]]]]}, "2013-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.47, -10.47], [49.0, -10.25], [49.25, -10.35], [49.5, -10.25], [49.75, -10.35], [50.0, -10.25], [50.53, -10.47], [50.68, -10.82], [51.03, -10.97], [51.18, -11.32], [51.53, -11.47], [51.75, -12.0], [51.65, -12.25], [51.75, -12.5], [51.65, -12.75], [51.75, -13.0], [51.65, -13.25], [51.75, -13.5], [51.53, -14.03], [51.0, -14.25], [50.5, -14.04], [50.0, -14.25], [49.47, -14.03], [49.32, -13.68], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.32, -12.32], [49.35, -12.25], [49.32, -12.18], [49.25, -12.15], [49.0, -12.25], [48.47, -12.03], [48.25, -11.5], [48.35, -11.25], [48.25, -11.0], [48.47, -10.47]]]]}, "2013-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.75, -13.0], [48.97, -12.47], [49.5, -12.25], [49.75, -12.35], [50.0, -12.25], [50.53, -12.47], [50.75, -13.0], [50.65, -13.25], [50.75, -13.5], [50.53, -14.03], [50.0, -14.25], [49.47, -14.03], [49.32, -13.68], [48.97, -13.53], [48.75, -13.0]]]]}, "2013-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.5, -12.25], [50.03, -12.47], [50.25, -13.0], [50.03, -13.53], [49.5, -13.75], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.5, -12.25]]]]}, "2013-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.5, -12.25], [50.03, -12.47], [50.25, -13.0], [50.03, -13.53], [49.5, -13.75], [48.97, -13.53], [48.75, -13.0], [48.97, -12.47], [49.5, -12.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5337299847909094}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1171192261287501}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.17075955198237, 28.183605605088815, 27.928145245988958, 27.830257570255526, 27.489119382698107, 27.075297645487865, 27.00723115749696]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.17075955198237, 28.50223828155373, 28.244168834977188, 28.159603705590655, 27.52459785652121, 27.075297645487865, 27.00723115749696]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.225834995402522, 1.3127879757817311, 1.060312556649573, 0.9442743728834557, 1.2449958656447393, 1.2011651270056518, 1.1524175527169405]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.225834995402522, 1.5337299847909094, 1.2053515322924113, 1.4721146930996838, 1.5261488253433981, 1.2011651270056518, 1.1524175527169405]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6447082298737978, 2.0823565299526203, 1.697975723406905, 1.536235356375145, 1.904249015476304, 1.8604539424211748, 1.7891631396014456]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6447082298737978, 2.4032888617056014, 1.9841048332660025, 2.1002898321670584, 2.2321634033016107, 1.8604539424211748, 1.7891631396014456]}}