Relevant bibliographies by topics / Maunakea

Academic literature on the topic 'Maunakea'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Maunakea"

1

Cherubini, Tiziana, Ryan Lyman, and Steven Businger. "Forecasting seeing for the Maunakea observatories with machine learning." Monthly Notices of the Royal Astronomical Society 509, no. 1 (October 12, 2021): 232–45. http://dx.doi.org/10.1093/mnras/stab2916.

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ABSTRACT The staff at the Maunakea Weather Center (MKWC) has provided daily forecasts of optical turbulence for the summit of Maunakea for more than 20 yr. Observational measures of optical turbulence at Maunakea with which to validate official MKWC forecasts have been available since mid-2009. This paper presents a machine-learning approach to translate the MKWC experience into a forecast of the nightly average optical turbulent state of the atmosphere. Maunakea observational and forecast data were collected to build a predictive model of the total and free atmospheric seeing for the following five nights. The motivation for this work is two-fold: to provide a tool/guidance to the MKWC forecaster and allow for a dynamic calibration of the optical turbulence algorithm implemented in the MKWC Weather Research and Forecasting (WRF) model.
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Lyman, Ryan, Tiziana Cherubini, and Steven Businger. "Forecasting seeing for the Maunakea Observatories." Monthly Notices of the Royal Astronomical Society 496, no. 4 (June 30, 2020): 4734–48. http://dx.doi.org/10.1093/mnras/staa1787.

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ABSTRACT Optical turbulence greatly impacts the range and quality of astronomical observations. Advanced knowledge of the expected atmospheric optical turbulence provides important guidance that helps astronomers decide which instrument to schedule and enables them to optimize the adaptive optics technology that improves image resolution. Along with forecasts of weather conditions, prediction of the optical observing quality on the Maunakea summit has been a goal for the Maunakea Weather Center (MKWC) since its inception more than 20 yr ago. Forecasting optical turbulence, and its derivative, ‘seeing’, has proven to be quite challenging because optical turbulence is too small and complex to directly capture with a regional weather model. Fortunately, the permanent installation of a Differential Image Motion Monitor (DIMM) and Multi-Aperture Scintillation Sensor (MASS) at the summit of Maunakea has made seeing observations available during the last decade, providing valuable feedback to the MKWC. This paper summarizes the experience at MKWC in anticipating optical turbulence for the summit of Maunakea accrued through years of daily operational forecasting, and continuous comparison between MKWC official forecasts, model guidance, and observational measures of seeing. Access to a decade seeing observations has allowed quantification the factors that impact seeing, including wind shear, atmospheric stability patterns, and optical turbulence, and to document the seasonal and intra-seasonal variations in seeing. Consequently, the combination of experience gained, and custom model guidance has led to more accurate seeing forecasts (rms errors averaging <0.25 arcsec since 2012) for the Maunakea astronomical observatories.
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Ho`omanawanui, Ku`ualoha, Candace Fujikane, Aurora Kagawa-Viviani, Kerry Kamakaoka‘ilima Long, and Kekailoa Perry. "Teaching for Maunakea: Kiaʻi Perspectives." Amerasia Journal 45, no. 2 (May 4, 2019): 271–76. http://dx.doi.org/10.1080/00447471.2019.1686318.

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4

van Kooten, Maaike A. M., and Jonathan G. Izett. "Climate Change and Astronomy: A Look at Long-term Trends on Maunakea." Publications of the Astronomical Society of the Pacific 134, no. 1039 (September 1, 2022): 095001. http://dx.doi.org/10.1088/1538-3873/ac81ec.

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Abstract Maunakea is one of the world’s primary sites for astronomical observing, with multiple telescopes operating over submillimeter to optical wavelengths. With its summit higher than 4200 m above sea level, Maunakea is an ideal location for astronomy, with a historically dry, stable climate and minimal turbulence above the summit. Under a changing climate, however, we ask how the (above-)summit conditions may have evolved in recent decades since the site was first selected as an observatory location and how future-proof the site might be to continued change. We use data from a range of sources, including in situ meteorological observations, radiosonde profiles, and numerical reanalyses to construct a climatology at Maunakea over the previous 40 yr. We are interested in both the meteorological conditions (e.g., wind speed and humidity) and the image quality (e.g., seeing). We find that meteorological conditions were, in general, relatively stable over the period with few statistically significant trends and with quasi-cyclical interannual variability in astronomically significant parameters such as temperature and precipitable water vapor. We do, however, find that maximum wind speeds have increased over the past decades, with observed wind speeds above 15 m s−1 increasing in frequency by 1%–2%, which may have a significant impact on ground-layer turbulence. Further, we note that while the conditions themselves are not necessarily changing significantly, the combination of conditions that lead to dome closures (i.e., freezing conditions, increased summit wind speeds, and/or high humidities) are worsening to the point that the number of closure conditions have more than doubled in the last 20 yr. Importantly, we find that the Fried parameter has not changed in the last 40 yr, suggesting there has not been an increase in optical turbulence strength above the summit. Ultimately, more data and data sources—including profiling instruments—are needed at the site to ensure continued monitoring into the future and to detect changes in the summit climate.
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Schorghofer, Norbert, Matthias Leopold, and Kenji Yoshikawa. "State of High-Altitude Permafrost on Tropical Maunakea Volcano, Hawaii." Permafrost and Periglacial Processes 28, no. 4 (July 2, 2017): 685–97. http://dx.doi.org/10.1002/ppp.1954.

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Radford, Simon J. E., and Jeffery B. Peterson. "Submillimeter Atmospheric Transparency at Maunakea, at the South Pole, and at Chajnantor." Publications of the Astronomical Society of the Pacific 128, no. 965 (June 10, 2016): 075001. http://dx.doi.org/10.1088/1538-3873/128/965/075001.

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Francisco, Kainana S., Patrick J. Hart, Jinbao Li, Edward R. Cook, and Patrick J. Baker. "Annual rings in a native Hawaiian tree,Sophora chrysophylla, on Maunakea, Hawaiʻi." Journal of Tropical Ecology 31, no. 6 (August 12, 2015): 567–71. http://dx.doi.org/10.1017/s026646741500036x.

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Abstract:Annual rings are not commonly produced in tropical trees because they grow in a relatively aseasonal environment. However, in the subalpine zones of Hawaiʻi's highest volcanoes, there is often strong seasonal variability in temperature and rainfall. Using classical dendrochronological methods, annual growth rings were shown to occur inSophora chrysophylla, a native tree species on Maunakea, Hawaiʻi. Chronologies were established from nearby non-native, live conifer trees and these were used to verify the dates from a total of 52 series from 22S. chrysophyllatrees, establishing an 86-y chronology (1926–2011). Ring-width patterns were significantly correlated with monthly rainfall from August of the previous year. This study is the first in the eastern tropical Pacific region to demonstrate annual growth rings in trees.
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Hesser, James E., David Bohlender, and Dennis Crabtree. "Canada's Dominion Astrophysical Observatory and the rise of 20th Century Astrophysics and Technology." Proceedings of the International Astronomical Union 11, A29A (August 2015): 109–11. http://dx.doi.org/10.1017/s1743921316002520.

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AbstractConstruction of Canada's Dominion Astrophysical Observatory (DAO) commenced in 1914 with first light on 6 May 1918. As distinct from the contemporaneous development with private funding of major observatories in the western United States, DAO was (and remains) funded by the federal government. Canada's initial foray into ‘big science’, creation of DAO during the First World War was driven by Canada's desire to contribute significantly to the international rise of observational astrophysics enabled by photographic spectroscopy. In 2009 the Observatory was designated a National Historic Site. DAO's varied, rich contributions to the astronomical heritage of the 20th century continue in the 21st century, with particularly strong ties to Maunakea.
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Ono, Yoshito H., Carlos M. Correia, Dave R. Andersen, Olivier Lardière, Shin Oya, Masayuki Akiyama, Kate Jackson, and Colin Bradley. "Statistics of turbulence parameters at Maunakea using the multiple wavefront sensor data of RAVEN." Monthly Notices of the Royal Astronomical Society 465, no. 4 (December 31, 2016): 4931–41. http://dx.doi.org/10.1093/mnras/stw3083.

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Ilić, Dragana. "The BLR physics from the long-term optical monitoring of type-1 AGN." Proceedings of the International Astronomical Union 15, S356 (October 2019): 144. http://dx.doi.org/10.1017/s1743921320002768.

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AbstractThe variation of optical continuum and broad emission lines is observed in all type 1 active galactic nuclei (AGN). In some cases even extreme variability is detected when broad-line profiles completely disappear as is the case in the co-called changing-look AGN, which raise new question on the theoretical model of AGN. This variability is an important tool to study the physics and geometry of the broad line region (BLR), e.g. it can be used to estimate its size through the reverberation mapping technique. Especially, long-term campaigns give new insights, like the detection of the periodic signals or discoveries of changing-look AGN. Here we will present the results of our long-term monitoring campaign of several well-known AGN, as e.g. NGC 3516 for which we confirm that it is the changing-look AGN, putting special attention of the applications for future large time-domain spectroscopic surveys, like the MaunaKea Spectroscopic Explorer project.
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Books on the topic "Maunakea"

1

Rāmireḍḍi, Bommāreḍḍi Veṅkaṭa. Mauname nī bhāṣa. Vijayavāḍa: Snēha Pracuraṇa, 1991.

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Śrīnivās, Śūdra. Mātu maunada munde. Beṅgaḷūru: Nelamale Pabliṣiṅg Haus, 2012.

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Niḍle, Jitu. Maunada mātugaḷu: Kathā saṅkalana. Suḷyā: Svantikā Sāhitya Baḷaga, 2001.

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Ramēṣ, Maṇḍya. Raṅgavalli: Mātu-maunada naḍuve oppattina nenapu. Maisūru: Vismaya Prakāśana, 2009.

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Work, Thierry M. Necropsy and liver histopathology for fish sampled adjacent to the Waianae Ocean Outfall and the Maunalua Bay, reference station, Oʻahu, Hawaiʻi, February 2008. Honolulu, Hawaiʻi: Water Resources Research Center, University of Hawaiʻi at Mănoa, 2006.

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Work, Thierry M. Necropsy and liver histopathology for fish sampled adjacent to the Barbers Point Ocean Outfall and the Maunalua Bay reference station, Oʻahu, Hawaiʻi, January 2009. Honolulu, Hawaiʻi: Water Resources Research Center, University of Hawaiʻi at Mănoa, 2009.

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Work, Thierry M. Necropsy and liver histopathology for fish sampled adjacent to the Waianae Ocean Outfall and the Maunalua Bay reference station, Oʻahu, Hawaiʻi, March-April 2009. Honolulu, Hawaiʻi: Water Resources Research Center, University of Hawaiʻi at Mănoa, 2009.

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Brock, James A. Necropsy and liver histopathology for fish sampled in the vicinity of the Sand Island Ocean Outfall and in Maunalua Bay, O'ahu, Hawai'i, September 2000. Honolulu, Hawai'i: Water Resources Research Center, University of Hawai'i at Mãnoa, 2000.

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Work, Thierry M. Necropsy and liver histopathology for fish sampled in the vicinity of the Sand Island Ocean Outfall and at reference stations in Maunalua Bay, Oʻahu, Hawaiʻi, July 2006. Honolulu, Hawaiʻ: Water Resources Research Center, University of Hawaiʻi at Mănoa, 2006.

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West, Michael J. A Sky Wonderful with Stars: 50 Years of Modern Astronomy on Maunakea. Latitude 20, 2015.

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Conference papers on the topic "Maunakea"

1

Petric, Andreea O., Nicolas Flagey, Jennifer L. Marshall, Leo Barba, Samuel Barden, Alexis Hill, Kei Szeto, Étienne Artigau, and Andrew Stephens. "Maunakea Night-Sky Model." In Observatory Operations: Strategies, Processes, and Systems VIII, edited by Chris R. Benn, Robert L. Seaman, and David S. Adler. SPIE, 2020. http://dx.doi.org/10.1117/12.2561879.

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Szeto, Kei, Alexis Hill, Nicolas Flagey, Alan W. McConnachie, and Richard Murowinski. "Maunakea Spectroscopic Explorer (MSE): instrumentation suite." In Ground-based and Airborne Instrumentation for Astronomy VII, edited by Hideki Takami, Christopher J. Evans, and Luc Simard. SPIE, 2018. http://dx.doi.org/10.1117/12.2314266.

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Flagey, Nicolas, Shan Mignot, Kei Szeto, Alan McConnachie, and Rick Murowinski. "The Maunakea Spectroscopic Explorer: throughput optimization." In SPIE Astronomical Telescopes + Instrumentation, edited by Christopher J. Evans, Luc Simard, and Hideki Takami. SPIE, 2016. http://dx.doi.org/10.1117/12.2231238.

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Szeto, Kei, Richard Murowinski, Alan McConnachie, Alexis Hill, Nicolas Flagey, Shan Mignot, Doug Simons, and Steven Bauman. "Maunakea spectroscopic explorer advancing from conceptual design." In Ground-based and Airborne Telescopes VII, edited by Roberto Gilmozzi, Heather K. Marshall, and Jason Spyromilio. SPIE, 2018. http://dx.doi.org/10.1117/12.2314067.

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Murga Llano, Gaizka, Kei Szeto, Rafael Urrutia, Steven E. Bauman, Armando Bilbao, Thomas E. Lorentz, and Richard Murowinski. "The Maunakea Spectroscopic Explorer (MSE) telescope mount." In Ground-based and Airborne Telescopes VII, edited by Roberto Gilmozzi, Heather K. Marshall, and Jason Spyromilio. SPIE, 2018. http://dx.doi.org/10.1117/12.2313157.

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Vermeulen, Tom, Sidik Isani, Kanoa Withington, Kevin Ho, Kei Szeto, and Rick Murowinski. "Observatory software for the Maunakea Spectroscopic Explorer." In SPIE Astronomical Telescopes + Instrumentation, edited by Gianluca Chiozzi and Juan C. Guzman. SPIE, 2016. http://dx.doi.org/10.1117/12.2234297.

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Stomski, Paul J., Randy Campbell, Tom Cumming, Russell Kackley, Shui Kwok, and Jim Thomas. "Laser traffic control system upgrades for Maunakea." In SPIE Astronomical Telescopes + Instrumentation, edited by Enrico Marchetti, Laird M. Close, and Jean-Pierre Véran. SPIE, 2016. http://dx.doi.org/10.1117/12.2230832.

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Roth, Katherine C., Adam Smith, Andrew Stephens, and Olesja Smirnova. "Measurements of airglow on Maunakea at Gemini Observatory." In SPIE Astronomical Telescopes + Instrumentation, edited by Alison B. Peck, Robert L. Seaman, and Chris R. Benn. SPIE, 2016. http://dx.doi.org/10.1117/12.2233891.

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Saunders, Will, and Peter R. Gillingham. "Optical designs for the Maunakea Spectroscopic Explorer Telescope." In SPIE Astronomical Telescopes + Instrumentation, edited by Helen J. Hall, Roberto Gilmozzi, and Heather K. Marshall. SPIE, 2016. http://dx.doi.org/10.1117/12.2234208.

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Marshall, Jennifer L., Jennifer Sobeck, Andreea O. Petric, and Nicolas Flagey. "Planning scientific operations for the Maunakea Spectroscopic Explorer." In Observatory Operations: Strategies, Processes, and Systems IX, edited by Chris R. Benn, Robert L. Seaman, and David S. Adler. SPIE, 2022. http://dx.doi.org/10.1117/12.2629973.

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Reports on the topic "Maunakea"

1

Marshall, Jennifer, and et al. The Maunakea Spectroscopic Explorer. Office of Scientific and Technical Information (OSTI), July 2019. http://dx.doi.org/10.2172/1568876.

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