printlogo
http://www.ethz.ch/index_EN
Institute for Atmospheric and Climate Science
 
print
  

PINC

Based on the concept of the laboratory instrument ZINC and the experiences we gained with it we developed the field instrument PINC with a small and lightweight cooling system and a shorter chamber so that it is easily transportable. One goal of the development of this instrument was the possibility to do field studies and fly on research aircraft with limited space and power supply. Unlike ZINC, PINC has a couple of portable refrigerant compressors (Danfoss BD series) to directly cool the walls of the chamber without the use of an intermediate cooling liquid. In this configuration, the instrument is able to measure ambient ice nuclei (IN) concentrations at conditions as cold as -40°C and relative humidities exceeding water saturation1.

The instrument has already successfully participated in a couple of laboratory campaigns2,3 in Switzerland and Germany. Our main focus now lies on field campaigns. PINC has measured ambient IN concentrations on the High Alpine Research Station Jungfraujoch during several campaigns since 20081. Recently, we participated in CLACE2013 and CLACE2014, two large campaigns at the Jungfraujoch which aimed at investigating mixed-phase cloud properties. Furthermore, we launched together with our partners from AEMET, the CALIMA (Cloud Affecting particLes In Mineral dust from the sAhara) 2013 campaign at the Izaña Observatory on Tenerife, Spain. Here, we looked at the effectiveness of mineral dust acting as ice nuclei as well as cloud condensation nuclei.
In the future, more field campaigns are planned for the PINC, such as CALIMA2014, taking place again at the Izaña Observatory. In the PIMCA set-up a field study on biological IN on the Höngger Berg in Zürich will be conducted. In the moment, two PhD students are working with the PINC: Monika Kohn on the role of bio - IN and Yvonne Boose on mineral dust acting as IN.

References:

1 C. Chou et al. (2011), Atmos. Chem. Phys., 11, 4725-4738

2 C. Chou et al. (2013), Atmos. Chem. Phys., 13, 761-772

3 Z.A. Kanji et al. (2013), Atmos. Chem. Phys., 13, 9097-9118

 

Wichtiger Hinweis:
Diese Website wird in älteren Versionen von Netscape ohne graphische Elemente dargestellt. Die Funktionalität der Website ist aber trotzdem gewährleistet. Wenn Sie diese Website regelmässig benutzen, empfehlen wir Ihnen, auf Ihrem Computer einen aktuellen Browser zu installieren. Weitere Informationen finden Sie auf
folgender Seite.

Important Note:
The content in this site is accessible to any browser or Internet device, however, some graphics will display correctly only in the newer versions of Netscape. To get the most out of our site we suggest you upgrade to a newer browser.
More information

© 2014 ETH Zurich | Imprint | Disclaimer | 29 September 2014
top