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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?. 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.

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T. SASAKI ( 佐々木敏由紀 ) with supports by H.S.Wang ( 王紅師 ) and Y. Yao （姚永強 )

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  1. 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)

  2. 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 Crucial evaluation is inevitable in summer season - Oma site: bad clear sky ration < 50% Cloud Monitor and Weather Station on 10m Tower at Gar summit

  3. 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

  4. 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

  5. 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

  6. 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 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.

  7. 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? ・Search for during flight between Lhasa and Ali Two candidate Peaks after fly by Mt. Kailash Peak#1 Lat31:48:07.96 Long 81:17:59.91 Alt 5825m Peak#2 Lat32:20:27.27 Long 80:53:16.27 Alt 5810m

  8. 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?

  9. 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 !

  10. 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 NCAR(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

  11. 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 !

  12. 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

  13. 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

  14. 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

  15. 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 Could you find a new site ? difficulat to find new nice sites around Ali w/ excellent observational conditions

  16. EACOA Medium-size Telescope Science Workshop, Kunming, China, June 21-25, 2013 T. Sasaki: “Ali Evaluation matters and Other Candidate Sites in Ali area?” Kailash Ali Evaluation matters and Other Candidate Sites in Ali area? 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.

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