{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:43.006803", "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-Apr-12_to_2015-Apr-15_100.0_9.0"}, "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": 2015040000544}, "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": "April 12 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 79220.76758766641}, "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": ["Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["Gulf of Thailand"]}, "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": 9.0}, "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": 100.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 98.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "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": {"2015-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 10.5], [99.47, 11.03], [100.0, 11.25], [100.25, 11.15], [100.5, 11.25], [100.75, 11.15], [101.0, 11.25], [101.25, 11.15], [101.5, 11.25], [101.75, 11.15], [102.0, 11.25], [102.53, 11.03], [102.75, 10.5], [102.65, 10.25], [102.75, 10.0], [102.65, 9.75], [102.75, 9.5], [102.53, 8.97], [102.0, 8.75], [101.75, 8.85], [101.68, 8.82], [101.53, 8.47], [101.0, 8.25], [100.75, 8.35], [100.5, 8.25], [99.97, 8.47], [99.75, 9.0], [99.85, 9.25], [99.75, 9.5], [99.85, 9.75], [99.82, 9.82], [99.47, 9.97], [99.25, 10.5]]]]}, "2015-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 9.25], [98.25, 9.5], [98.35, 9.75], [98.25, 10.0], [98.35, 10.25], [98.25, 10.5], [98.47, 11.03], [99.0, 11.25], [99.5, 11.04], [100.0, 11.25], [100.25, 11.15], [100.5, 11.25], [100.75, 11.15], [101.0, 11.25], [101.25, 11.15], [101.5, 11.25], [101.75, 11.15], [102.0, 11.25], [102.53, 11.03], [102.75, 10.5], [102.65, 10.25], [102.75, 10.0], [102.65, 9.75], [102.75, 9.5], [102.53, 8.97], [102.0, 8.75], [101.75, 8.85], [101.68, 8.82], [101.53, 8.47], [101.0, 8.25], [100.75, 8.35], [100.68, 8.32], [100.53, 7.97], [100.0, 7.75], [99.5, 7.96], [99.0, 7.75], [98.47, 7.97], [98.25, 8.5], [98.35, 8.75], [98.25, 9.0], [98.35, 9.25]]]]}, "2015-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 9.25], [98.25, 9.5], [98.35, 9.75], [98.25, 10.0], [98.35, 10.25], [98.25, 10.5], [98.47, 11.03], [99.0, 11.25], [99.5, 11.04], [100.0, 11.25], [100.25, 11.15], [100.5, 11.25], [100.75, 11.15], [101.0, 11.25], [101.25, 11.15], [101.5, 11.25], [101.75, 11.15], [102.0, 11.25], [102.53, 11.03], [102.75, 10.5], [102.65, 10.25], [102.75, 10.0], [102.65, 9.75], [102.75, 9.5], [102.53, 8.97], [102.0, 8.75], [101.75, 8.85], [101.68, 8.82], [101.53, 8.47], [101.0, 8.25], [100.75, 8.35], [100.68, 8.32], [100.53, 7.97], [100.0, 7.75], [99.5, 7.96], [99.0, 7.75], [98.47, 7.97], [98.25, 8.5], [98.35, 8.75], [98.25, 9.0], [98.35, 9.25]]]]}, "2015-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 9.25], [98.25, 9.5], [98.35, 9.75], [98.25, 10.0], [98.35, 10.25], [98.25, 10.5], [98.47, 11.03], [99.0, 11.25], [99.53, 11.03], [99.68, 10.68], [100.03, 10.53], [100.18, 10.18], [100.53, 10.03], [100.75, 9.5], [100.65, 9.25], [100.75, 9.0], [100.65, 8.75], [100.75, 8.5], [100.53, 7.97], [100.0, 7.75], [99.5, 7.96], [99.0, 7.75], [98.47, 7.97], [98.25, 8.5], [98.35, 8.75], [98.25, 9.0], [98.35, 9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.470194779271992}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8621916577324835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.898450519537448, 26.32468423075551, 26.185909873541448, 26.397402271552664]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.675007919161715, 25.080060101969423, 24.658100645423076, 25.625614445273584]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.288467322598558, -1.9220002031571233, -2.0847372211159243, -1.9771605848232836]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.5021900291944803, -2.9104389529061336, -3.470194779271992, -2.565834044513508]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7005955242133173, -2.107725629968345, -2.2334225271888126, -1.7486489995495946]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.154003098760153, -2.4726685079285646, -2.843112091560339, -2.03807482438737]}}