{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:27.105207", "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": "2014-Jan-04_to_2014-Jan-08_80.0_9.5"}, "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": 2014010000245}, "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 04 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 08 2014"}, "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": 57962.1123580985}, "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": ["Sri Lanka"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Bay-of-Bengal", "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": ["Bay of Bengal", "Laccadive Sea"]}, "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": 9.5}, "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": 78.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 81.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "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": {"2014-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.85, 8.75], [78.75, 9.0], [78.97, 9.53], [79.32, 9.68], [79.35, 9.75], [79.25, 10.0], [79.47, 10.53], [79.82, 10.68], [79.97, 11.03], [80.5, 11.25], [80.75, 11.15], [81.0, 11.25], [81.25, 11.15], [81.5, 11.25], [82.03, 11.03], [82.25, 10.5], [82.03, 9.97], [81.68, 9.82], [81.54, 9.5], [81.75, 9.0], [81.53, 8.47], [81.0, 8.25], [80.7, 8.37], [80.53, 7.97], [80.18, 7.82], [80.03, 7.47], [79.5, 7.25], [78.97, 7.47], [78.75, 8.0], [78.85, 8.25], [78.75, 8.5], [78.85, 8.75]]]]}, "2014-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.85, 8.75], [78.75, 9.0], [78.85, 9.25], [78.75, 9.5], [78.97, 10.03], [79.32, 10.18], [79.47, 10.53], [79.82, 10.68], [79.97, 11.03], [80.5, 11.25], [80.75, 11.15], [81.0, 11.25], [81.25, 11.15], [81.5, 11.25], [82.03, 11.03], [82.25, 10.5], [82.03, 9.97], [81.68, 9.82], [81.54, 9.5], [81.75, 9.0], [81.53, 8.47], [81.0, 8.25], [80.7, 8.37], [80.53, 7.97], [80.18, 7.82], [80.03, 7.47], [79.5, 7.25], [78.97, 7.47], [78.75, 8.0], [78.85, 8.25], [78.75, 8.5], [78.85, 8.75]]]]}, "2014-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.35, 8.25], [78.25, 8.5], [78.47, 9.03], [78.82, 9.18], [78.85, 9.25], [78.75, 9.5], [78.97, 10.03], [79.32, 10.18], [79.47, 10.53], [79.82, 10.68], [79.97, 11.03], [80.5, 11.25], [80.75, 11.15], [81.0, 11.25], [81.25, 11.15], [81.5, 11.25], [82.03, 11.03], [82.25, 10.5], [82.03, 9.97], [81.68, 9.82], [81.65, 9.75], [81.75, 9.5], [81.65, 9.25], [81.75, 9.0], [81.53, 8.47], [81.0, 8.25], [80.7, 8.37], [80.53, 7.97], [80.18, 7.82], [80.03, 7.47], [79.68, 7.32], [79.53, 6.97], [79.0, 6.75], [78.47, 6.97], [78.25, 7.5], [78.35, 7.75], [78.25, 8.0], [78.35, 8.25]]]]}, "2014-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.35, 8.25], [78.25, 8.5], [78.47, 9.03], [78.82, 9.18], [78.85, 9.25], [78.75, 9.5], [78.97, 10.03], [79.32, 10.18], [79.47, 10.53], [80.0, 10.75], [80.25, 10.65], [80.5, 10.75], [80.75, 10.65], [81.0, 10.75], [81.53, 10.53], [81.75, 10.0], [81.65, 9.75], [81.75, 9.5], [81.65, 9.25], [81.75, 9.0], [81.53, 8.47], [81.0, 8.25], [80.7, 8.37], [80.53, 7.97], [80.18, 7.82], [80.03, 7.47], [79.68, 7.32], [79.53, 6.97], [79.0, 6.75], [78.47, 6.97], [78.25, 7.5], [78.35, 7.75], [78.25, 8.0], [78.35, 8.25]]]]}, "2014-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 8.5], [78.47, 9.03], [78.82, 9.18], [78.85, 9.25], [78.75, 9.5], [78.97, 10.03], [79.5, 10.25], [80.03, 10.03], [80.25, 9.5], [80.15, 9.25], [80.25, 9.0], [80.03, 8.47], [79.68, 8.32], [79.65, 8.25], [79.75, 8.0], [79.65, 7.75], [79.75, 7.5], [79.53, 6.97], [79.0, 6.75], [78.47, 6.97], [78.25, 7.5], [78.35, 7.75], [78.25, 8.0], [78.35, 8.25], [78.25, 8.5]]], [[[81.53, 10.03], [81.75, 9.5], [81.53, 8.97], [81.0, 8.75], [80.47, 8.97], [80.25, 9.5], [80.47, 10.03], [81.0, 10.25], [81.53, 10.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.801723245400126}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0148319871165483}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.585880535280978, 24.812858573139295, 24.912483891458123, 24.91453311068784, 25.19189514822807]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.89679657346113, 24.262570238371666, 24.431674092252422, 24.518010110328248, 24.938915689536543]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2730604990418206, -1.0263007522754568, -0.9640588720063072, -0.9285772209448986, -0.7744211207004715]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.801723245400126, -1.3568970340332385, -1.3366424222363662, -1.2205653273913981, -0.8934450993848486]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0603396927904964, -1.7061873586208682, -1.676518665467169, -1.6993930458381519, -1.6075981023853358]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.722623751708839, -2.073478089605774, -2.1284687815220567, -2.0024980746995498, -1.9754724161252815]}}