{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:22:37.605440", "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": "2021-Feb-23_to_2021-Mar-01_271.5_13.5"}, "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": 2021020002194}, "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": "February 23 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 01 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 57202.77491054095}, "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": ["El Salvador", "Guatemala", "Honduras", "Nicaragua"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "America", "America"]}, "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": ["Pacific Ocean"]}, "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": 13.5}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 270.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-90.177, 13.323], [-90.53, 13.47], [-90.75, 14.0], [-90.53, 14.53], [-90.0, 14.75], [-89.75, 14.646], [-89.5, 14.75], [-89.25, 14.646], [-89.0, 14.75], [-88.75, 14.646], [-88.5, 14.75], [-87.97, 14.53], [-87.823, 14.177], [-87.751, 14.146], [-87.75, 14.146], [-87.5, 14.25], [-86.97, 14.03], [-86.75, 13.5], [-86.854, 13.25], [-86.823, 13.177], [-86.47, 13.03], [-86.25, 12.5], [-86.47, 11.97], [-86.823, 11.823], [-86.97, 11.47], [-87.5, 11.25], [-87.75, 11.354], [-88.0, 11.25], [-88.25, 11.354], [-88.5, 11.25], [-89.03, 11.47], [-89.25, 12.0], [-89.146, 12.25], [-89.25, 12.5], [-89.146, 12.75], [-89.177, 12.823], [-89.25, 12.854], [-89.5, 12.75], [-90.03, 12.97], [-90.177, 13.323]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-02-23T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-90.17677669529661, 13.323223304703363], [-90.53033008588989, 13.469669914110089], [-90.75, 14.0], [-90.53033008588989, 14.530330085889911], [-90.0, 14.75], [-89.46966991411011, 14.530330085889911], [-89.32322330470339, 14.176776695296637], [-89.25, 14.146446609406722], [-89.0, 14.25], [-88.75, 14.146446609406722], [-88.5, 14.25], [-88.0, 14.042893218813443], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.82322330470339, 13.176776695296637], [-86.46966991411011, 13.030330085889911], [-86.25, 12.5], [-86.46966991411011, 11.969669914110089], [-87.0, 11.75], [-87.25, 11.853553390593278], [-87.5, 11.75], [-88.03033008588989, 11.969669914110089], [-88.25, 12.5], [-88.14644660940672, 12.75], [-88.19822330470333, 12.875000000000007], [-88.5, 12.75], [-88.75, 12.853553390593278], [-89.0, 12.75], [-89.25, 12.853553390593278], [-89.5, 12.75], [-90.03033008588989, 12.969669914110089], [-90.17677669529661, 13.323223304703363]]]}, "2021-02-24T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-90.17677669529661, 13.323223304703363], [-90.53033008588989, 13.469669914110089], [-90.75, 14.0], [-90.53033008588989, 14.530330085889911], [-90.0, 14.75], [-89.46966991411011, 14.530330085889911], [-89.32322330470339, 14.176776695296637], [-89.25, 14.146446609406722], [-89.0, 14.25], [-88.75, 14.146446609406722], [-88.5, 14.25], [-88.25, 14.146446609406722], [-88.0, 14.25], [-87.75, 14.146446609406722], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.82322330470339, 13.176776695296637], [-86.46966991411011, 13.030330085889911], [-86.25, 12.5], [-86.46966991411011, 11.969669914110089], [-86.82322330470339, 11.823223304703363], [-86.96966991411011, 11.469669914110089], [-87.5, 11.25], [-87.75, 11.353553390593278], [-88.0, 11.25], [-88.25, 11.353553390593278], [-88.5, 11.25], [-89.03033008588989, 11.469669914110089], [-89.25, 12.0], [-89.14644660940672, 12.25], [-89.25, 12.5], [-89.14644660940672, 12.75], [-89.17677669529661, 12.823223304703363], [-89.25, 12.853553390593278], [-89.5, 12.75], [-90.03033008588989, 12.969669914110089], [-90.17677669529661, 13.323223304703363]]]}, "2021-02-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-90.17677669529661, 13.323223304703363], [-90.53033008588989, 13.469669914110089], [-90.75, 14.0], [-90.53033008588989, 14.530330085889911], [-90.0, 14.75], [-89.46966991411011, 14.530330085889911], [-89.32322330470339, 14.176776695296637], [-89.25, 14.146446609406722], [-89.0, 14.25], [-88.75, 14.146446609406722], [-88.5, 14.25], [-88.25, 14.146446609406722], [-88.0, 14.25], [-87.75, 14.146446609406722], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.82322330470339, 13.176776695296637], [-86.46966991411011, 13.030330085889911], [-86.25, 12.5], [-86.46966991411011, 11.969669914110089], [-86.82322330470339, 11.823223304703363], [-86.96966991411011, 11.469669914110089], [-87.5, 11.25], [-87.75, 11.353553390593278], [-88.0, 11.25], [-88.25, 11.353553390593278], [-88.5, 11.25], [-89.03033008588989, 11.469669914110089], [-89.25, 12.0], [-89.14644660940672, 12.25], [-89.25, 12.5], [-89.14644660940672, 12.75], [-89.17677669529661, 12.823223304703363], [-89.25, 12.853553390593278], [-89.5, 12.75], [-90.03033008588989, 12.969669914110089], [-90.17677669529661, 13.323223304703363]]]}, "2021-02-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-89.25, 12.853553390593278], [-89.5, 12.75], [-90.03033008588989, 12.969669914110089], [-90.25, 13.5], [-90.03033008588989, 14.030330085889911], [-89.5, 14.25], [-89.25, 14.146446609406722], [-89.0, 14.25], [-88.75, 14.146446609406722], [-88.5, 14.25], [-88.25, 14.146446609406722], [-88.0, 14.25], [-87.75, 14.146446609406722], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.82322330470339, 13.176776695296637], [-86.46966991411011, 13.030330085889911], [-86.25, 12.5], [-86.46966991411011, 11.969669914110089], [-86.82322330470339, 11.823223304703363], [-86.96966991411011, 11.469669914110089], [-87.5, 11.25], [-87.75, 11.353553390593278], [-88.0, 11.25], [-88.25, 11.353553390593278], [-88.5, 11.25], [-89.03033008588989, 11.469669914110089], [-89.25, 12.0], [-89.14644660940672, 12.25], [-89.25, 12.5], [-89.14644660940672, 12.75], [-89.17677669529661, 12.823223304703363], [-89.25, 12.853553390593278]]]}, "2021-02-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-89.67677669529661, 13.323223304703363], [-90.03033008588989, 13.469669914110089], [-90.25, 14.0], [-90.03033008588989, 14.530330085889911], [-89.5, 14.75], [-89.25, 14.646446609406722], [-89.0, 14.75], [-88.75, 14.646446609406722], [-88.5, 14.75], [-87.96966991411011, 14.530330085889911], [-87.80177669529667, 14.124999999999993], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.82322330470339, 13.176776695296637], [-86.46966991411011, 13.030330085889911], [-86.25, 12.5], [-86.46966991411011, 11.969669914110089], [-86.82322330470339, 11.823223304703363], [-86.96966991411011, 11.469669914110089], [-87.5, 11.25], [-87.75, 11.353553390593278], [-88.0, 11.25], [-88.25, 11.353553390593278], [-88.5, 11.25], [-89.03033008588989, 11.469669914110089], [-89.25, 12.0], [-89.03033008588989, 12.530330085889911], [-88.67677669529661, 12.676776695296637], [-88.625, 12.801776695296635], [-88.75, 12.853553390593278], [-89.0, 12.75], [-89.53033008588989, 12.969669914110089], [-89.67677669529661, 13.323223304703363]]]}, "2021-02-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-89.25, 13.353553390593278], [-89.5, 13.25], [-90.03033008588989, 13.469669914110089], [-90.25, 14.0], [-90.03033008588989, 14.530330085889911], [-89.5, 14.75], [-89.25, 14.646446609406722], [-89.0, 14.75], [-88.75, 14.646446609406722], [-88.5, 14.75], [-87.96966991411011, 14.530330085889911], [-87.80177669529667, 14.124999999999993], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.85355339059328, 13.25], [-86.75, 13.0], [-86.85355339059328, 12.75], [-86.75, 12.5], [-86.96966991411011, 11.969669914110089], [-87.5, 11.75], [-87.75, 11.853553390593278], [-88.0, 11.75], [-88.53033008588989, 11.969669914110089], [-88.75, 12.5], [-88.625, 12.801776695296635], [-89.03033008588989, 12.969669914110089], [-89.17677669529661, 13.323223304703363], [-89.25, 13.353553390593278]]]}, "2021-03-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-89.25, 13.353553390593278], [-89.5, 13.25], [-90.03033008588989, 13.469669914110089], [-90.25, 14.0], [-90.03033008588989, 14.530330085889911], [-89.5, 14.75], [-89.25, 14.646446609406722], [-89.0, 14.75], [-88.75, 14.646446609406722], [-88.5, 14.75], [-87.96966991411011, 14.530330085889911], [-87.80177669529667, 14.124999999999993], [-87.5, 14.25], [-86.96966991411011, 14.030330085889911], [-86.75, 13.5], [-86.96966991411011, 12.969669914110089], [-87.5, 12.75], [-88.0, 12.957106781186557], [-88.5, 12.75], [-89.03033008588989, 12.969669914110089], [-89.17677669529661, 13.323223304703363], [-89.25, 13.353553390593278]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.7439651967858367}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4520363355242798}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.43341962963774, 28.57619515751321, 28.95237962030535, 28.701489537520217, 28.487327607906423, 28.72462360018426, 28.721994903157622]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.250893993173122, 30.62211036564929, 30.808316216887874, 30.655778827339077, 30.602852271191693, 30.057383347485143, 30.074499357271236]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2835964467405958, 1.3353769816878014, 1.7054368820711154, 1.263831992019118, 1.3767174099326536, 1.5696766496757633, 1.8561860753163728]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6413200848815563, 1.9919246949555145, 2.7439651967858367, 2.0200633274810684, 2.095087665092933, 2.2817781122012093, 2.3038828828094324]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5056066362601772, 1.8460900906955136, 2.374682790761283, 1.7841105803786106, 1.6519214579347952, 1.5573283125238526, 1.4646319318695409]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7477273725111586, 2.631800689274669, 3.193810306152445, 2.213699786144704, 2.206407120254486, 1.930845213527118, 1.6021528552013422]}}