t. sasaki ( 佐々木敏由紀 ) with supports by h.s.wang ( 王紅師 ) and y. yao...
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Ali Evaluation matters and Other Candidate Sites in Ali area?. T. SASAKI ( 佐々木敏由紀 ) with supports by H.S.Wang ( 王紅師 ) and Y. Yao （姚永強 ). EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013. - PowerPoint PPT PresentationTRANSCRIPT
T. SASAKI ( 佐々木敏由紀 ) with supports by H.S.Wang ( 王紅師 ) and Y. Yao （姚永強 )
Ali Evaluation matters and Other Candidate Sites in Ali area?
Ali Evaluation matters(1)Crucial evaluation is inevitable in summer season - Oma site: bad clear sky ration < 50%
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Cloud Monitor and Weather Station on 10m Tower at Gar summit
Ali Evaluation matters(2) Strongly Windy condition in winter season, - detected in Nov-Jan, 2012 and Dec-Jan, 2013
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Ali Evaluation matters(2) Strongly Windy condition in winter season, - detected in Nov-Jan, 2012 and Dec-Jan, 2013
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Ali Evaluation matters(2) Strongly Windy condition in winter season, - detected in Nov-Jan, 2012 and Dec-Jan, 2013
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Ali Evaluation matters(2) Strongly Windy condition in winter season, - calm wind during late Jan to May, 2013
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
In case of Dome/Telescope wind-resistant stability up to 20m/sec
Wind-resistant stability up to 20m/sec is necessary to design the dome/telescope at Ali.
・ Search for during flight between Lhasa and AliTwo candidate Peaks after fly by Mt. Kailash
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?
Peak#1 Lat 31:48:07.96 Long 81:17:59.91 Alt 5825m
Peak#2 Lat 32:20:27.27 Long 80:53:16.27 Alt 5810m
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?- Visited the sites on June 3, 2013 from Shiquanhe 獅泉河 by vehicle
But peak#2 was under cloudy sky !
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) ModelNCAR(National Center for Atmosphere Research) and NCEP(National Centers for Environmental Prediction ).
Hongshuai Wang ( 王紅師 ) san and Yao san has simulated weather conditions for 72 days over 2010 around Ali area(200km×200km) with 1km horizontal resolution and vertical resolution is 65 levels from ground to 30km(1000Pa).
- Cloud Cover at Ali area- Wind Speed and Direction- PWV at Ali area- Seeing distribution over Ali area
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) Model
Two Peaks covered w/ much cloud !
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) Model
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) Model
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) Model
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”
Other Candidate Sites in Ali area?Weather Research and Forecasting (WRF) Model
difficulat to find new nice sites around Aliw/ excellent observational conditions
Could you find a new site ?
I have tried to find more excellent site around Ali, but I failed.So should continue
to evaluate Astronomical observation conditions at Gar site for at least one more year.
Ali Evaluation matters and Other Candidate Sites in Ali area?
Kailash
EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?”