{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:53.658911", "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": "2015-Sep-11_to_2015-Sep-15_4.5_16.5"}, "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": 2015090001804}, "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": "September 11 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 15 2015"}, "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": "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": 50359.018164212226}, "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": ["Mali", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 16.5}, "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": 4.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "4.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 17.53], [3.82, 17.68], [3.97, 18.03], [4.5, 18.25], [4.75, 18.15], [5.0, 18.25], [5.25, 18.15], [5.5, 18.25], [6.03, 18.03], [6.25, 17.5], [6.15, 17.25], [6.18, 17.18], [6.53, 17.03], [6.68, 16.68], [6.75, 16.65], [7.0, 16.75], [7.25, 16.65], [7.5, 16.75], [8.03, 16.53], [8.25, 16.0], [8.03, 15.47], [7.5, 15.25], [7.25, 15.35], [7.0, 15.25], [6.75, 15.35], [6.5, 15.25], [6.0, 15.46], [5.5, 15.25], [5.25, 15.35], [5.0, 15.25], [4.75, 15.35], [4.5, 15.25], [3.97, 15.47], [3.82, 15.82], [3.47, 15.97], [3.25, 16.5], [3.35, 16.75], [3.25, 17.0], [3.47, 17.53]]]]}, "2015-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 17.53], [3.82, 17.68], [3.97, 18.03], [4.5, 18.25], [4.75, 18.15], [5.0, 18.25], [5.25, 18.15], [5.5, 18.25], [6.03, 18.03], [6.25, 17.5], [6.15, 17.25], [6.18, 17.18], [6.53, 17.03], [6.68, 16.68], [6.75, 16.65], [7.0, 16.75], [7.25, 16.65], [7.5, 16.75], [8.03, 16.53], [8.25, 16.0], [8.03, 15.47], [7.5, 15.25], [7.25, 15.35], [7.0, 15.25], [6.75, 15.35], [6.5, 15.25], [6.0, 15.46], [5.5, 15.25], [5.25, 15.35], [5.0, 15.25], [4.75, 15.35], [4.5, 15.25], [3.97, 15.47], [3.82, 15.82], [3.47, 15.97], [3.25, 16.5], [3.35, 16.75], [3.25, 17.0], [3.47, 17.53]]]]}, "2015-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 17.53], [3.82, 17.68], [3.97, 18.03], [4.5, 18.25], [4.75, 18.15], [5.0, 18.25], [5.25, 18.15], [5.5, 18.25], [6.03, 18.03], [6.25, 17.5], [6.15, 17.25], [6.18, 17.18], [6.53, 17.03], [6.68, 16.68], [6.75, 16.65], [7.0, 16.75], [7.25, 16.65], [7.5, 16.75], [8.03, 16.53], [8.25, 16.0], [8.03, 15.47], [7.5, 15.25], [7.25, 15.35], [7.0, 15.25], [6.75, 15.35], [6.5, 15.25], [6.0, 15.46], [5.5, 15.25], [5.25, 15.35], [5.0, 15.25], [4.75, 15.35], [4.5, 15.25], [3.97, 15.47], [3.82, 15.82], [3.47, 15.97], [3.25, 16.5], [3.35, 16.75], [3.25, 17.0], [3.47, 17.53]]]]}, "2015-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 17.53], [3.82, 17.68], [3.97, 18.03], [4.5, 18.25], [4.75, 18.15], [5.0, 18.25], [5.25, 18.15], [5.5, 18.25], [6.03, 18.03], [6.25, 17.5], [6.15, 17.25], [6.18, 17.18], [6.53, 17.03], [6.68, 16.68], [6.75, 16.65], [7.0, 16.75], [7.25, 16.65], [7.5, 16.75], [8.03, 16.53], [8.25, 16.0], [8.03, 15.47], [7.5, 15.25], [7.25, 15.35], [7.0, 15.25], [6.75, 15.35], [6.5, 15.25], [6.0, 15.46], [5.5, 15.25], [5.25, 15.35], [5.0, 15.25], [4.75, 15.35], [4.5, 15.25], [3.97, 15.47], [3.82, 15.82], [3.47, 15.97], [3.25, 16.5], [3.35, 16.75], [3.25, 17.0], [3.47, 17.53]]]]}, "2015-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.25, 17.0], [3.47, 17.53], [4.0, 17.75], [4.53, 17.53], [4.68, 17.18], [5.03, 17.03], [5.25, 16.5], [5.03, 15.97], [4.5, 15.75], [3.97, 15.97], [3.82, 16.32], [3.47, 16.47], [3.25, 17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1526397137272966}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.111850179577334}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.85686026429249, 34.34057132153299, 34.05101730587637, 34.39598058227131, 34.70553919834799]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.91398441362486, 35.93856937105619, 35.33981465528791, 35.642152074936405, 35.263510840919196]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6492030290385173, 2.0516260733344858, 1.7325299783368195, 2.0659060850275806, 1.6710023764387643]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1526397137272966, 2.19699882970275, 2.273583269496953, 2.540829796736375, 1.7852314635042035]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8403024132285104, 1.4949602715416699, 1.2981858725263185, 1.6153285428216533, 1.3433938543101949]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2560461318441876, 1.657888250076958, 1.6540440406293706, 1.8830707658056411, 1.4233451108698785]}}