Network for Observation of Volcanic and Atmospheric Change (NOVAC): SO2 flux from Turrialba Volcano (Costa Rica)

Emission rate of SO2 from Turrialba volcano for the period 2014-01-01 to 2016-09-30. This dataset contains individual SO2 flux measurements obtained from scanning DOAS instruments part of the NOVAC network, operated by OVSICORI (Costa Rica), and daily statistics. Data has been processed with the NOVAC batch processing software, using meteorological data from the ECMWF ERA interim analysis database (0.125/0.125 deg, 6 h) interpolated at the volcano summit coordinates for the time of each measurement. Plume height and direction is obtained by triangulation of two scan measurements when possible. It also includes daily statistics. This file has been prepared within the DECADE/DCO project. Raw data can be accessed by contacting the authors.

本数据集涵盖2014年1月1日至2016年9月30日期间图里亚尔瓦火山（Turrialba volcano）的二氧化硫（SO2）排放速率数据。本数据集包含由哥斯达黎加OVSICORI运营的NOVAC网络中的扫描式差分光学吸收光谱（Differential Optical Absorption Spectroscopy, DOAS）仪器获取的单次SO2通量测量数据与每日统计结果。所有数据均通过NOVAC批量处理软件完成处理，处理过程中采用欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts, ECMWF）ERA interim再分析数据库的气象数据（分辨率为0.125°×0.125°，时间间隔为6小时），并针对每次测量时刻的火山峰顶坐标完成插值运算。在条件允许的情况下，可通过两次扫描测量的三角剖分方法获取火山羽流的高度与运动方向。本数据集同时包含每日统计结果。本文件由DECADE/DCO项目筹备编制。原始数据可通过联系作者获取。