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Investigating Wintertime Cloud Microphysical Properties and Their Relationship to Air Mass Advection at Ny-Ålesund, Svalbard Using the Synergy of a Cloud Radar–Ceilometer–Microwave Radiometer
| Content Provider | MDPI |
|---|---|
| Author | Cho, Yeonsoo Park, Sang-Jong Kim, Joo-Hong Yeo, Huidong Nam, Jihyun Jun, Sang-Yoon Kim, Baek-Min Kim, Sang-Woo |
| Copyright Year | 2021 |
| Description | This study investigates the relationship of cloud properties and radiative effects with air mass origin during the winter (November–February, 2016–2020) at Ny-Ålesund, Svalbard, through a combination of cloud radar, ceilometer, and microwave radiometer measurements. The liquid cloud fraction (CF) was less than 2%, whereas the ice CF predominantly exceeded 10% below 6 km. The liquid water content (LWC) of mixed-phase clouds $(LWC_{mix}$), which predominantly exist in the boundary layer $(CF_{mix}$: 10–30%), was approximately four times higher than that of liquid clouds $(LWC_{liq}$). Warm air mass advection $(warm_{adv}$) cases were closely linked with strong southerly/southwesterly winds, whereas northerly winds brought cold and dry air masses $(cold_{adv}$) to the study area. Elevated values of LWC and ice water content (IWC) during $warm_{adv}$ cases can be explained by the presence of mixed-phase clouds in the boundary layer and ice clouds in the middle troposphere. Consistently, the $r_{e}$ of ice particles in $warm_{adv}$ cases was approximately 5–10 μm larger than that in $cold_{adv}$ cases at all altitudes. A high CF and cloud water content in $warm_{adv}$ cases contributed to a 33% (69 W $m^{−2}$) increase in downward longwave (LW) fluxes compared to cloud-free conditions. |
| Starting Page | 2529 |
| e-ISSN | 20724292 |
| DOI | 10.3390/rs13132529 |
| Journal | Remote Sensing |
| Issue Number | 13 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-06-28 |
| Access Restriction | Open |
| Subject Keyword | Remote Sensing Atmospheric Sciences Arctic Clouds Cloud Microphysical Properties Air Mass Advection Cloud Radar Ny-ålesund |
| Content Type | Text |
| Resource Type | Article |