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Alkalinization Scenarios in the Mediterranean Sea for Efficient Removal of Atmospheric CO2 and the Mitigation of Ocean Acidification

open access: yesFrontiers in Climate, 2021
It is now widely recognized that in order to reach the target of limiting global warming to well below 2°C above pre-industrial levels (as the objective of the Paris agreement), cutting the carbon emissions even at an unprecedented pace will not be ...
Momme Butenschön   +4 more
doaj   +1 more source

On process-oriented conditional targeted covariance inflation (TCI) for 3D-volume radar data assimilation [PDF]

open access: yesNonlinear Processes in Geophysics
This paper addresses a major challenge in assimilating 3D radar reflectivity data with a localized ensemble transform Kalman filter (LETKF).
K. Vobig   +3 more
doaj   +1 more source

Characteristic Scales of Tropical Convection Based on the Japanese Advanced Himawari-8 Imager Observations

open access: yesRemote Sensing, 2022
Convective activities play an important role in tropical weather systems. To investigate the characteristic scales of convection, a method combining a principal component (PC) analysis with Fourier decomposition is applied to brightness temperature ...
Jingchen Pu, Xiaolei Zou
doaj   +1 more source

Mitigation of Systematic Noise in F16 SSMIS LAS Channels Observations for Tropical Cyclone Applications

open access: yesRemote Sensing, 2022
The Special Sensor Microwave Imager Sounder (SSMIS) onboard the Defense Meteorological Satellite Program (DMSP) F16, launched on 18 October 2003, was the first conical-scanning radiometer to combine the Special Sensor Microwave/Imagers (SSM/I), Special ...
Huijie Dong, Xiaolei Zou
doaj   +1 more source

Impact Evaluation of Assimilating Surface Sensitive Infrared Radiance Observations over Land and Sea Ice from Observing System Simulation Experiments

open access: yesAdvances in Meteorology, 2015
In this study, Observing System Simulation Experiments (OSSEs) are conducted to analyze the impact of assimilating surface sensitive infrared radiance observations over land and sea ice. This type of assimilation has not yet been successfully implemented
S. K. Dutta, L. Garand, S. Heilliette
doaj   +1 more source

Tropical Cyclone Center Positioning Using Single Channel Microwave Satellite Observations of Brightness Temperature

open access: yesRemote Sensing, 2021
Satellite observations of brightness temperature from the Advanced Technology Microwave Sounder (ATMS) and Microwave Humidity Sounder (MHS) humidity sounding channels can provide relatively high horizontal resolution information about cloud and ...
Yanyang Hu, Xiaolei Zou
doaj   +1 more source

COSMIC-2 RO Profile Ending at PBL Top with Strong Vertical Gradient of Refractivity

open access: yesRemote Sensing, 2022
The Formosa Satellite-7/Constellation Observing System for Meteorology, Ionosphere, and Climate-2 (Satellite-7/COSMIC-2), which was successfully launched on 25 June 2019, provides dense radio occultation (RO) observations over the tropics and subtropics.
Xu Xu, Xiaolei Zou
doaj   +1 more source

Global 3D Features of Error Variances of GPS Radio Occultation and Radiosonde Observations

open access: yesRemote Sensing, 2020
Global Positioning System (GPS) radio occultation (RO) and radiosonde (RS) observations are two major types of observations assimilated in numerical weather prediction (NWP) systems.
Xu Xu, Xiaolei Zou
doaj   +1 more source

A Diagnostic Study on the Formation of Double Eyewalls of Typhoon Lekima (2019) Based on POES Microwave and GOES Infrared Observations

open access: yesEarth and Space Science, 2023
Microwave observations of brightness temperature (TB) from multiple polar‐orbiting operational environmental satellite imagers and infrared observations of geostationary operational environmental satellite Himawari‐8 imager are used to investigate ...
Yanyang Hu, Xiaolei Zou
doaj   +1 more source

Bias Characteristics of COSMIC RO Data within Clouds Based on Different Background Fields

open access: yesGaoyuan qixiang, 2023
The Global Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) from 2007 to 2009 were collocated with the CloudSat nadir-pointing cloud profiling radar (CPR) in time and space in this study.We ...
Yan’an YIN, Shengpeng YANG
doaj   +1 more source

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