CaltechAUTHORS
  A Caltech Library Service

Multi Aperture Scintillation Sensor (MASS) used in the site selection of the Thirty Meter Telescope (TMT)

Els, S. G. and Schöck, M. and Seguel, J. and Skidmore, W. and Walker, D. and Tokovinin, A. and Kornilov, V. and Riddle, R. and Travouillon, T. and Bustos, E. and Vasquez, J. and Blum, R. and Gregory, B. and Gillett, P. (2008) Multi Aperture Scintillation Sensor (MASS) used in the site selection of the Thirty Meter Telescope (TMT). In: Ground-based and Airborne Telescopes II. Proceedings of SPIE. No.7012. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 701222. ISBN 9780819472229. http://resolver.caltech.edu/CaltechAUTHORS:20181113-082159746

[img] PDF - Published Version
See Usage Policy.

1193Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20181113-082159746

Abstract

One of the main tools used in the TMT site testing campaign is the turbulence profiler MASS. We describe empirical investigations and a side by side comparison of two MASS systems which were performed in order to identify the accuracy of MASS turbulence data and its dependence on the instrument calibration. The accuracy of the total seeing delivered by the TMT MASS systems is found to be better than 0"05. The combination of MASS and DIMM allows to observe the seeing within the first few hundred meters of the atmosphere and can be used to investigate possible correlations with meteorological parameters measured close to the ground. We also compare the detection of clouds and cirrus by means of MASS data (LOSSAM method) with measurements of the thermal emission of clouds using a net radiation sensor. These methods are compared with the visual cloud detection using all sky cameras.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.788954DOIArticle
ORCID:
AuthorORCID
Riddle, R.0000-0002-0387-370X
Additional Information:© 2008 Society of Photo-optical Instrumentation Engineers (SPIE). We are greateful to Hugo E. Schwarz for his work on the development of the all sky camera systems and for pointing out the potential use of a net radiation sensor for the detection of clouds. We thank the Cerro Tololo Inter-American Observatory staff for their support and hospitality. The TMT Project gratefully acknowledges the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology and the University of California. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Universities for Research in Astronomy (AURA) and the U.S. National Science Foundation.
Group:Thirty Meter Telescope
Funders:
Funding AgencyGrant Number
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
CaltechUNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
British Columbia Knowledge Development FundUNSPECIFIED
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:Site testing, instrumentation, turbulence profiling
Record Number:CaltechAUTHORS:20181113-082159746
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181113-082159746
Official Citation:S. G. Els, M. Schoeck, J. Seguel, W. Skidmore, D. Walker, A. Tokovinin, V. Kornilov, R. Riddle, T. Travouillon, E. Bustos, J. Vasquez, R. Blum, B. Gregory, P. Gillett, "The Multi Aperture Scintillation Sensor (MASS) used in the site selection of the Thirty Meter Telescope (TMT)," Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701222 (10 July 2008)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90852
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Nov 2018 17:56
Last Modified:13 Nov 2018 17:56

Repository Staff Only: item control page