CAECENET:自动系统处理来自不同网络的光度表和天平度表数据,以提供柱状和垂直分辨率的气溶特性
Celia Herrero Del Barrio1, Roberto Román1, Ramiro González1
1Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, Valladolid, Spain.
PloS one
|December 27, 2024
概括
CAECENET是一个新的系统,它使用太阳-天空光度仪和天平计数据来监测气溶的特性. 它成功地追踪了整个伊比利亚半岛的撒哈拉沙尘和加拿大野火烟雾事件.
科学领域:
- 大气科学 大气科学
- 环境监测 环境监测
- 遥感 遥感 遥感 遥感
背景情况:
- 准确监测柱状和垂直分辨的气溶特性对于了解大气过程和空气质量至关重要.
- 现有的方法往往缺乏整合多个数据源,以进行全面的气溶表征.
- 伊比利亚半岛容易受到来自各种来源的气溶远程运输的影响.
研究的目的:
- 推出CAECENET,这是一个用于自动检索气溶属性的新型系统.
- 为了证明该系统对气溶垂直和柱状特征的持续,近实时监测的能力.
- 评估CAECENET在分析区域规模传输的气溶事件方面的潜力.
主要方法:
- 实施GRASP (大气和表面特性通用检索) 算法,称为GRASPpac.
- 来自CÆLIS数据库的太阳-天空光度仪数据和来自ICENET数据库 (伊比利亚天气计网络) 的天气计数据的同化.
- 利用分布在整个伊比利亚半岛的CAECENET电台网络.
主要成果:
- CAECENET可以持续监测气溶光学深度 (AOD) 和体积度.
- 该系统有效地分析了撒哈拉沙漠尘埃爆发 (2022年10月) 和加拿大野火烟雾运输 (2023年6月).
- 分析显示了气溶事件高度,传播速度,度和光学性质的变化.
结论:
- CAECENET是用于对气溶特性进行近实时监测和分析的宝贵工具.
- 该系统在研究区域规模传输的气溶事件方面具有显著的实用性.
- 综合使用光度仪和天平计数据可以提高气溶的特征和事件分析.
相关概念视频
01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
563
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
563
01:22Atomic Absorption Spectroscopy: Instrumentation
399
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
The atomizer used in AAS can be either a flame atomizer or an...
399
01:22Atomic Emission Spectroscopy: Instrumentation
252
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
252
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
144
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
144
01:29Atomic Emission Spectroscopy: Lab
122
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
122