{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:42.047572", "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": "2024-Jul-13_to_2024-Jul-15_81.5_15.5"}, "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": 2024070000454}, "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 13 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 15 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 59592.60463928024}, "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"]}, "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": 15.5}, "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": 81.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 80.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 83.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[79.25, 15.5], [79.35, 15.75], [79.25, 16.0], [79.47, 16.53], [80.0, 16.75], [80.25, 16.65], [80.5, 16.75], [80.75, 16.65], [81.0, 16.75], [81.25, 16.65], [81.5, 16.75], [81.75, 16.65], [82.0, 16.75], [82.25, 16.65], [82.5, 16.75], [83.03, 16.53], [83.18, 16.18], [83.53, 16.03], [83.75, 15.5], [83.53, 14.97], [83.18, 14.82], [83.03, 14.47], [82.5, 14.25], [82.25, 14.35], [82.0, 14.25], [81.75, 14.35], [81.5, 14.25], [81.2, 14.37], [81.03, 13.97], [80.5, 13.75], [80.25, 13.85], [80.0, 13.75], [79.47, 13.97], [79.25, 14.5], [79.35, 14.75], [79.25, 15.0], [79.35, 15.25], [79.25, 15.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.25, 15.0], [79.35, 15.25], [79.25, 15.5], [79.35, 15.75], [79.25, 16.0], [79.47, 16.53], [80.0, 16.75], [80.25, 16.65], [80.5, 16.75], [80.75, 16.65], [81.0, 16.75], [81.25, 16.65], [81.5, 16.75], [81.75, 16.65], [82.0, 16.75], [82.25, 16.65], [82.5, 16.75], [83.03, 16.53], [83.18, 16.18], [83.53, 16.03], [83.75, 15.5], [83.53, 14.97], [83.18, 14.82], [83.03, 14.47], [82.5, 14.25], [82.25, 14.35], [82.0, 14.25], [81.75, 14.35], [81.5, 14.25], [81.2, 14.37], [81.03, 13.97], [80.5, 13.75], [80.25, 13.85], [80.0, 13.75], [79.47, 13.97], [79.25, 14.5], [79.35, 14.75], [79.25, 15.0]]]]}, "2024-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.25, 15.0], [79.35, 15.25], [79.25, 15.5], [79.35, 15.75], [79.25, 16.0], [79.47, 16.53], [80.0, 16.75], [80.25, 16.65], [80.5, 16.75], [80.75, 16.65], [81.0, 16.75], [81.25, 16.65], [81.5, 16.75], [81.75, 16.65], [82.0, 16.75], [82.25, 16.65], [82.5, 16.75], [83.03, 16.53], [83.18, 16.18], [83.53, 16.03], [83.75, 15.5], [83.53, 14.97], [83.18, 14.82], [83.03, 14.47], [82.5, 14.25], [82.25, 14.35], [82.0, 14.25], [81.75, 14.35], [81.5, 14.25], [81.2, 14.37], [81.03, 13.97], [80.5, 13.75], [80.25, 13.85], [80.0, 13.75], [79.47, 13.97], [79.25, 14.5], [79.35, 14.75], [79.25, 15.0]]]]}, "2024-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.25, 15.0], [79.35, 15.25], [79.25, 15.5], [79.35, 15.75], [79.25, 16.0], [79.47, 16.53], [80.0, 16.75], [80.25, 16.65], [80.5, 16.75], [80.75, 16.65], [81.0, 16.75], [81.25, 16.65], [81.5, 16.75], [81.75, 16.65], [82.0, 16.75], [82.25, 16.65], [82.5, 16.75], [83.03, 16.53], [83.18, 16.18], [83.53, 16.03], [83.75, 15.5], [83.53, 14.97], [83.18, 14.82], [83.03, 14.47], [82.5, 14.25], [82.25, 14.35], [82.0, 14.25], [81.75, 14.35], [81.5, 14.25], [81.2, 14.37], [81.03, 13.97], [80.5, 13.75], [80.25, 13.85], [80.0, 13.75], [79.47, 13.97], [79.25, 14.5], [79.35, 14.75], [79.25, 15.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3731992411612737}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6104094208662758}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.76419977605252, 27.735028229324143, 27.678341023145947]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.08491092347151, 27.229910787800407, 26.805445031958357]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.598049731751317, -1.6014590874307828, -1.6317194434167277]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.117073139603349, -2.8981177011630166, -3.3731992411612737]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6097084942553443, -1.6815125006535407, -1.6513167231645682]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8945685718402097, -1.980961790490229, -1.9554279339910072]}}