{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:05.895977", "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": "2019-Jul-27_to_2019-Jul-31_80.0_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": 2019070000970}, "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": "July 27 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2019"}, "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": 64000.19482746139}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 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": 80.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "80.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 76.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 81.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.0, 20.25], [80.53, 20.03], [80.75, 19.5], [80.53, 18.97], [80.0, 18.75], [79.47, 18.97], [79.25, 19.5], [79.47, 20.03], [80.0, 20.25]]]]}, "2019-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, 19.5], [77.47, 20.03], [78.0, 20.25], [78.25, 20.15], [78.5, 20.25], [78.75, 20.15], [79.0, 20.25], [79.25, 20.15], [79.5, 20.25], [79.75, 20.15], [80.0, 20.25], [80.53, 20.03], [80.75, 19.5], [80.65, 19.25], [80.75, 19.0], [80.53, 18.47], [80.0, 18.25], [79.75, 18.35], [79.68, 18.32], [79.53, 17.97], [79.0, 17.75], [78.47, 17.97], [78.32, 18.32], [77.97, 18.47], [77.82, 18.82], [77.47, 18.97], [77.25, 19.5]]]]}, "2019-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 19.47], [75.75, 20.0], [75.97, 20.53], [76.5, 20.75], [76.75, 20.65], [77.0, 20.75], [77.25, 20.65], [77.5, 20.75], [77.75, 20.65], [77.82, 20.68], [77.97, 21.03], [78.5, 21.25], [78.75, 21.15], [79.0, 21.25], [79.5, 21.04], [80.0, 21.25], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.53, 21.03], [81.75, 20.5], [81.53, 19.97], [81.18, 19.82], [81.03, 19.47], [80.68, 19.32], [80.65, 19.25], [80.75, 19.0], [80.53, 18.47], [80.0, 18.25], [79.75, 18.35], [79.68, 18.32], [79.53, 17.97], [79.0, 17.75], [78.47, 17.97], [78.32, 18.32], [77.97, 18.47], [77.82, 18.82], [77.47, 18.97], [77.32, 19.32], [77.25, 19.35], [77.0, 19.25], [76.75, 19.35], [76.5, 19.25], [75.97, 19.47]]]]}, "2019-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 19.47], [75.75, 20.0], [75.97, 20.53], [76.5, 20.75], [76.75, 20.65], [77.0, 20.75], [77.25, 20.65], [77.5, 20.75], [77.75, 20.65], [77.82, 20.68], [77.97, 21.03], [78.5, 21.25], [78.75, 21.15], [79.0, 21.25], [79.5, 21.04], [80.0, 21.25], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.53, 21.03], [81.75, 20.5], [81.53, 19.97], [81.18, 19.82], [81.03, 19.47], [80.68, 19.32], [80.65, 19.25], [80.75, 19.0], [80.53, 18.47], [80.0, 18.25], [79.75, 18.35], [79.68, 18.32], [79.53, 17.97], [79.0, 17.75], [78.47, 17.97], [78.32, 18.32], [77.97, 18.47], [77.82, 18.82], [77.47, 18.97], [77.32, 19.32], [77.25, 19.35], [77.0, 19.25], [76.75, 19.35], [76.5, 19.25], [75.97, 19.47]]]]}, "2019-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 19.47], [75.75, 20.0], [75.97, 20.53], [76.5, 20.75], [76.75, 20.65], [77.0, 20.75], [77.25, 20.65], [77.5, 20.75], [77.75, 20.65], [77.82, 20.68], [77.97, 21.03], [78.5, 21.25], [78.75, 21.15], [79.0, 21.25], [79.5, 21.04], [80.0, 21.25], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.53, 21.03], [81.75, 20.5], [81.53, 19.97], [81.18, 19.82], [81.03, 19.47], [80.5, 19.25], [80.25, 19.35], [80.0, 19.25], [79.47, 19.47], [79.3, 19.88], [79.18, 19.82], [79.03, 19.47], [78.5, 19.25], [78.25, 19.35], [78.0, 19.25], [77.75, 19.35], [77.5, 19.25], [77.25, 19.35], [77.0, 19.25], [76.75, 19.35], [76.5, 19.25], [75.97, 19.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.901875741886954}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.402124567604995}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.2745695517213, 24.951934825744956, 24.36845610932704, 24.11519506519386, 24.408509723749887]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.2745695517213, 24.30012401285512, 23.41064375258219, 22.976966809762473, 23.514838862220643]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0055112154763037, -2.1667918649337765, -2.412131032297672, -2.6778549001723984, -2.107435470864923]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0055112154763037, -2.437617055301132, -2.8275555144140867, -2.901875741886954, -2.610120658648725]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3994669303633116, -1.573565421946504, -1.7100465708010715, -1.8682979884657902, -1.4733415255803533]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3994669303633116, -1.7136322077085415, -1.9745786558331695, -2.087342061485016, -1.656102017126146]}}