气候变化领域集成服务门户(CCPortal): Seasonal distributions of ocean particulate optical properties from spaceborne lidar measurements in Mediterranean and Black sea

CCPortal

DOI	10.1016/j.rse.2020.111889
	Seasonal distributions of ocean particulate optical properties from spaceborne lidar measurements in Mediterranean and Black sea
	Dionisi D.; Brando V.E.; Volpe G.; Colella S.; Santoleri R.
发表日期	2020
ISSN	00344257
卷号	247
英文摘要	Assessing the oceanic surface layer's optical properties through CALIOP has been one of the reasons of the extension of the CALIOP mission for 3 more years (2018–2020). This is the first work evaluating the potential use of CALIOP for ocean applications at regional scale in mid-latitude regions (i.e. Mediterranean, MED, and Black Sea, BS) and investigating the added information on ocean particles given by the column integrated depolarization ratio (δT) parameter. We implemented and refined a retrieval procedure to estimate this parameter at 1/4 degree of spatial resolution, comparing 7 years of CALIOP observations (2011–2017) to the corresponding Copernicus multi-sensor L3 ocean colour products of the surface particle backscattering coefficient (bbp) and chlorophyll-a concentration (Chl-a). This study pointed out that the current CALIOP sampling is inadequate to detect subtle day-night difference due to plankton diel variability for these basins. At a basin scale, δT covaries with bbp for bbp ≥ 0.0015 m−1. This is more evident for BS (R = 0.84) than for MED (R = 0.61). The analysis of seasonal distributions confirm this result for BS, where δT has a semi-annual cycle in very good agreement with bbp. In the MED, characterized by different trophic regimes, δT shows also some similarities with Chl-a annual cycle. The combined characterization in the MED bioregions of the annual patterns of bbp:Chl-a, δT:Chl-a and δT:bbp ratios suggested that δT parameter can provide valuable information about the non-sphericity and the size of ocean particles. © 2020 The Authors
语种	英语
scopus关键词	Backscattering; Oceanography; Optical radar; Particle size analysis; Backscattering coefficients; Chlorophyll-a concentration; Depolarization ratio; Retrieval procedures; Seasonal distributions; Space-borne lidar; Spatial resolution; Surface particles; Optical properties; annual cycle; CALIOP; chlorophyll a; diel variation; lidar; plankton; satellite data; seasonal variation; trophic conditions; Black Sea
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179263
作者单位	Institute of Marine Sciences (ISMAR), Italian National Research Council (CNR), Rome - Tor Vergata, Italy
推荐引用方式 GB/T 7714	Dionisi D.,Brando V.E.,Volpe G.,et al. Seasonal distributions of ocean particulate optical properties from spaceborne lidar measurements in Mediterranean and Black sea[J],2020,247.
APA	Dionisi D.,Brando V.E.,Volpe G.,Colella S.,&Santoleri R..(2020).Seasonal distributions of ocean particulate optical properties from spaceborne lidar measurements in Mediterranean and Black sea.Remote Sensing of Environment,247.
MLA	Dionisi D.,et al."Seasonal distributions of ocean particulate optical properties from spaceborne lidar measurements in Mediterranean and Black sea".Remote Sensing of Environment 247(2020).