scholarly journals Unmanned aircraft system measurements of the atmospheric boundary layer over Terra Nova Bay, Antarctica

2012 ◽  
Vol 5 (2) ◽  
pp. 1035-1056
Author(s):  
S. L. Knuth ◽  
J. J. Cassano ◽  
J. A. Maslanik ◽  
P. D. Herrmann ◽  
P. A. Kernebone ◽  
...  
Keyword(s):  
The United States ◽  
Unmanned Aircraft ◽  
Wind Pressure ◽  
Free Access ◽  
Unmanned Aircraft System ◽  
Terra Nova Bay ◽  
Terra Nova ◽  
Aircraft System ◽  
Data Coordination ◽  
Aircraft Data

Abstract. In September 2009, a series of long-range unmanned aircraft system (UAS) flights collected basic atmospheric data over the Terra Nova Bay polynya in Antarctica. Air temperature, wind, pressure, relative humidity, radiation, skin temperature, GPS, and operational aircraft data were collected and quality controlled for scientific use. The data has been submitted to the United States Antarctic Program Data Coordination Center (USAP-DCC) for free access (doi:10.1594/USAP/0739464).

scholarly journals Unmanned aircraft system measurements of the atmospheric boundary layer over Terra Nova Bay, Antarctica

2013 ◽  
Vol 5 (1) ◽  
pp. 57-69 ◽  
Author(s):  
S. L. Knuth ◽  
J. J. Cassano ◽  
J. A. Maslanik ◽  
P. D. Herrmann ◽  
P. A. Kernebone ◽  
...  
Keyword(s):  
The United States ◽  
Unmanned Aircraft ◽  
Wind Pressure ◽  
Free Access ◽  
Unmanned Aircraft System ◽  
Terra Nova Bay ◽  
Terra Nova ◽  
Aircraft System ◽  
Data Coordination ◽  
Aircraft Data

Abstract. In September 2009, a series of long-range unmanned aircraft system (UAS) flights collected basic atmospheric data over the Terra Nova Bay polynya in Antarctica. Air temperature, wind, pressure, relative humidity, radiation, skin temperature, GPS, and operational aircraft data were collected and quality controlled for scientific use. The data have been submitted to the United States Antarctic Program Data Coordination Center (USAP-DCC) for free access (doi:10.1594/USAP/0739464).

scholarly journals Observations of the atmosphere and surface state over Terra Nova Bay, Antarctica, using unmanned aerial systems

2016 ◽  
Vol 8 (1) ◽  
pp. 115-126 ◽  
Author(s):  
John J. Cassano ◽  
Mark W. Seefeldt ◽  
Scott Palo ◽  
Shelley L. Knuth ◽  
Alice C. Bradley ◽  
...  
Keyword(s):  
Ross Sea ◽  
The United States ◽  
Unmanned Aircraft ◽  
Unmanned Aerial Systems ◽  
Free Access ◽  
Data Set ◽  
Terra Nova Bay ◽  
Atmospheric State ◽  
Terra Nova ◽  
Aerial Systems

Abstract. In September 2012 five Aerosonde unmanned aircraft were used to make measurements of the atmospheric state over the Terra Nova Bay polynya, Antarctica, to explore the details of air–sea ice–ocean coupling. A total of 14 flights were completed in September 2012. Ten of the flight missions consisted of two unmanned aerial systems (UAS) sampling the atmosphere over Terra Nova Bay on 5 different days, with one UAS focusing on the downwind evolution of the air mass and a second UAS flying transects roughly perpendicular to the low-level winds. The data from these coordinated UAS flights provide a comprehensive three-dimensional data set of the atmospheric state (air temperature, humidity, pressure, and wind) and surface skin temperature over Terra Nova Bay. The remaining UAS flights during the September 2012 field campaign included two local flights near McMurdo Station for flight testing, a single UAS flight to Terra Nova Bay, and a single UAS flight over the Ross Ice Shelf and Ross Sea polynya. A data set containing the atmospheric and surface data as well as operational aircraft data have been submitted to the United States Antarctic Program Data Coordination Center (USAP-DCC, http://www.usap-data.org/) for free access (http://gcmd.nasa.gov/getdif.htm?NSF-ANT10-43657, doi:10.15784/600125).

scholarly journals Observations of the atmosphere and surface state over Terra Nova Bay, Antarctica using unmanned aircraft systems

2015 ◽  
Vol 8 (2) ◽  
pp. 995-1019
Author(s):  
J. J. Cassano ◽  
M. W. Seefeldt ◽  
S. Palo ◽  
S. L. Knuth ◽  
A. C. Bradley ◽  
...  
Keyword(s):  
Ross Sea ◽  
The United States ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Free Access ◽  
Data Set ◽  
Aircraft Systems ◽  
Terra Nova Bay ◽  
Atmospheric State ◽  
Terra Nova

Abstract. In September 2012 five Aerosonde unmanned aircraft were used to make measurements of the atmospheric state over the Terra Nova Bay polynya, Antarctica, to explore the details of air – sea ice – ocean coupling. A total of 14 flights were completed in September 2012. Ten of the flight missions consisted of two unmanned aircraft systems (UAS) sampling the atmosphere over Terra Nova Bay on five different days, with one UAS focusing on the downwind evolution of the air mass and a second UAS flying transects roughly perpendicular to the low level winds. The data from these coordinated UAS flights provide a comprehensive three-dimensional data set of the atmospheric state (air temperature, humidity, pressure, and wind) and surface skin temperature over Terra Nova Bay. The remaining UAS flights during the September 2012 field campaign included two local flights near McMurdo Station for flight testing, a single UAS flight to Terra Nova Bay, and a single UAS flight over the Ross Ice Shelf and Ross Sea polynya. A dataset containing the atmospheric and surface data as well as operational aircraft data has been submitted to the United States Antarctic Program Data Coordination Center (USAP-DCC, http://www.usap-data.org/) for free access (http://gcmd.nasa.gov/getdif.htm?NSF-ANT10-43657, doi:10.15784/600125).

scholarly journals The Atmospheric Boundary Layer and Surface Conditions during Katabatic Wind Events over the Terra Nova Bay Polynya

2020 ◽  
Vol 12 (24) ◽  
pp. 4160
Author(s):  
Marta Wenta ◽  
John J. Cassano
Keyword(s):  
Open Water ◽  
Unmanned Aircraft ◽  
Katabatic Wind ◽  
Katabatic Winds ◽  
Surface Conditions ◽  
Terra Nova Bay ◽  
Coastal Polynya ◽  
Terra Nova ◽  
Wind Events ◽  
Aircraft System

Off the coast of Victoria Land, Antarctica an area of open water—the Terra Nova Bay Polynya (TNBP)—persists throughout the austral winter. The development of this coastal polynya is driven by extreme katabatic winds blowing down the slopes of Transantarctic Mountains. The surface-atmosphere coupling and ABL transformation during the katabatic wind events between 18 and 25 September 2012 in Terra Nova Bay are studied, using observations from Aerosonde unmanned aircraft system (UAS), numerical modeling results and Antarctic Weather Station (AWS) measurements. First, we analyze how the persistence and strength of the katabatic winds relate to sea level pressure (SLP) changes in the region throughout the studied period. Secondly, the polynya extent variations are analysed in relation to wind speed changes. We conclude that the intensity of the flow, surface conditions in the bay and regional SLP fluctuations are all interconnected and contribute to polynya development. We also analyse the Antarctic Mesoscale Prediction System (AMPS) forecast for the studied period and find out that incorrect representation of vertical ABL properties over the TNBP might be caused by overestimated sea ice concentrations (SIC) used as model input. Altogether, this research provides a unique description of TNBP development and its interactions with the atmosphere and katabatic winds.

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