Optimization of the High-Frequency Radar Sites in the Bering Strait Region
Monitoring surface currents by coastal high-frequency radars (HFRs) is a cost-effective observational technique with good prospects for further development. An important issue in improving the efficiency of HFR systems is the optimization of radar positions on the coastline. Besides being constraine...
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ftdtic:ADA623053 2023-05-15T15:04:53+02:00 Optimization of the High-Frequency Radar Sites in the Bering Strait Region Panteleev, Gleb Yaremchuk, Max Stroh, Jacob Posey, Pamela Hebert, David Nechaev, Dmitri A NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS 2015-02 text/html http://www.dtic.mil/docs/citations/ADA623053 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA623053 en eng http://www.dtic.mil/docs/citations/ADA623053 Approved for public release; distribution is unlimited. DTIC Meteorology Physical and Dynamic Oceanography Statistics and Probability Active & Passive Radar Detection & Equipment *BERING STRAIT *COASTAL REGIONS *OCEAN MODELS ARCTIC REGIONS ASSIMILATION CHUKCHI SEA CIRCULATION COMPUTERIZED SIMULATION COVARIANCE EMPLACEMENT GAUSSIAN NOISE HIGH FREQUENCY ISLANDS MATHEMATICAL MODELS METEOROLOGICAL DATA MONITORING OCEAN CURRENTS OCEAN SURFACE OPTIMIZATION PROBABILITY DENSITY FUNCTIONS RADAR TRACKING SALINITY VECTOR ANALYSIS HFRS(HIGH FREQUENCY RADARS) CLIMATOLOGICAL DATA MHS(MASS HEAT AND SALT) PE0602435N Text 2015 ftdtic 2016-02-24T19:04:38Z Monitoring surface currents by coastal high-frequency radars (HFRs) is a cost-effective observational technique with good prospects for further development. An important issue in improving the efficiency of HFR systems is the optimization of radar positions on the coastline. Besides being constrained by environmental and logistic factors, such optimization has to account for prior knowledge of local circulation and the target quantities (such as transports through certain key sections) with respect to which the radar positions are to be optimized. In the proposed methodology, prior information of the regional circulation is specified by the solution of the 4D variational assimilation problem, where the available climatological data in the Bering Strait (BS) region are synthesized with dynamical constraints of a numerical model. The optimal HFR placement problem is solved by maximizing the reduction of a posteriori error in the mass, heat, and salt (MHS) transports through the target sections in the region. It is shown that the MHS transports into the Arctic and their redistribution within the Chukchi Sea are best monitored by placing HFRs at Cape Prince of Wales and on Little Diomede Island. Another equally efficient configuration involves placement of the second radar at Sinuk (western Alaska) in place of Diomede. Computations show that 1) optimization of the HFR deployment yields a significant (1.3--3 times) reduction of the transport errors compared to nonoptimal positioning of the radars and 2) error reduction provided by two HFRs is an order of magnitude better than the one obtained from three moorings permanently maintained in the region for the last 5 yr. This result shows a significant advantage of BS monitoring by HFRs compared to the more traditional technique of in situ moored observations. The obtained results are validated by an extensive set of observing system simulation experiments. Published in the Journal of Atmospheric and Ocean Technology, v32 p297-309, February 2015. Text Arctic Bering Strait Chukchi Chukchi Sea Diomede Island Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Chukchi Sea Bering Strait Cape Prince of Wales ENVELOPE(-71.499,-71.499,61.617,61.617) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology Physical and Dynamic Oceanography Statistics and Probability Active & Passive Radar Detection & Equipment *BERING STRAIT *COASTAL REGIONS *OCEAN MODELS ARCTIC REGIONS ASSIMILATION CHUKCHI SEA CIRCULATION COMPUTERIZED SIMULATION COVARIANCE EMPLACEMENT GAUSSIAN NOISE HIGH FREQUENCY ISLANDS MATHEMATICAL MODELS METEOROLOGICAL DATA MONITORING OCEAN CURRENTS OCEAN SURFACE OPTIMIZATION PROBABILITY DENSITY FUNCTIONS RADAR TRACKING SALINITY VECTOR ANALYSIS HFRS(HIGH FREQUENCY RADARS) CLIMATOLOGICAL DATA MHS(MASS HEAT AND SALT) PE0602435N |
spellingShingle |
Meteorology Physical and Dynamic Oceanography Statistics and Probability Active & Passive Radar Detection & Equipment *BERING STRAIT *COASTAL REGIONS *OCEAN MODELS ARCTIC REGIONS ASSIMILATION CHUKCHI SEA CIRCULATION COMPUTERIZED SIMULATION COVARIANCE EMPLACEMENT GAUSSIAN NOISE HIGH FREQUENCY ISLANDS MATHEMATICAL MODELS METEOROLOGICAL DATA MONITORING OCEAN CURRENTS OCEAN SURFACE OPTIMIZATION PROBABILITY DENSITY FUNCTIONS RADAR TRACKING SALINITY VECTOR ANALYSIS HFRS(HIGH FREQUENCY RADARS) CLIMATOLOGICAL DATA MHS(MASS HEAT AND SALT) PE0602435N Panteleev, Gleb Yaremchuk, Max Stroh, Jacob Posey, Pamela Hebert, David Nechaev, Dmitri A Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
topic_facet |
Meteorology Physical and Dynamic Oceanography Statistics and Probability Active & Passive Radar Detection & Equipment *BERING STRAIT *COASTAL REGIONS *OCEAN MODELS ARCTIC REGIONS ASSIMILATION CHUKCHI SEA CIRCULATION COMPUTERIZED SIMULATION COVARIANCE EMPLACEMENT GAUSSIAN NOISE HIGH FREQUENCY ISLANDS MATHEMATICAL MODELS METEOROLOGICAL DATA MONITORING OCEAN CURRENTS OCEAN SURFACE OPTIMIZATION PROBABILITY DENSITY FUNCTIONS RADAR TRACKING SALINITY VECTOR ANALYSIS HFRS(HIGH FREQUENCY RADARS) CLIMATOLOGICAL DATA MHS(MASS HEAT AND SALT) PE0602435N |
description |
Monitoring surface currents by coastal high-frequency radars (HFRs) is a cost-effective observational technique with good prospects for further development. An important issue in improving the efficiency of HFR systems is the optimization of radar positions on the coastline. Besides being constrained by environmental and logistic factors, such optimization has to account for prior knowledge of local circulation and the target quantities (such as transports through certain key sections) with respect to which the radar positions are to be optimized. In the proposed methodology, prior information of the regional circulation is specified by the solution of the 4D variational assimilation problem, where the available climatological data in the Bering Strait (BS) region are synthesized with dynamical constraints of a numerical model. The optimal HFR placement problem is solved by maximizing the reduction of a posteriori error in the mass, heat, and salt (MHS) transports through the target sections in the region. It is shown that the MHS transports into the Arctic and their redistribution within the Chukchi Sea are best monitored by placing HFRs at Cape Prince of Wales and on Little Diomede Island. Another equally efficient configuration involves placement of the second radar at Sinuk (western Alaska) in place of Diomede. Computations show that 1) optimization of the HFR deployment yields a significant (1.3--3 times) reduction of the transport errors compared to nonoptimal positioning of the radars and 2) error reduction provided by two HFRs is an order of magnitude better than the one obtained from three moorings permanently maintained in the region for the last 5 yr. This result shows a significant advantage of BS monitoring by HFRs compared to the more traditional technique of in situ moored observations. The obtained results are validated by an extensive set of observing system simulation experiments. Published in the Journal of Atmospheric and Ocean Technology, v32 p297-309, February 2015. |
author2 |
NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS |
format |
Text |
author |
Panteleev, Gleb Yaremchuk, Max Stroh, Jacob Posey, Pamela Hebert, David Nechaev, Dmitri A |
author_facet |
Panteleev, Gleb Yaremchuk, Max Stroh, Jacob Posey, Pamela Hebert, David Nechaev, Dmitri A |
author_sort |
Panteleev, Gleb |
title |
Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
title_short |
Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
title_full |
Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
title_fullStr |
Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
title_full_unstemmed |
Optimization of the High-Frequency Radar Sites in the Bering Strait Region |
title_sort |
optimization of the high-frequency radar sites in the bering strait region |
publishDate |
2015 |
url |
http://www.dtic.mil/docs/citations/ADA623053 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA623053 |
long_lat |
ENVELOPE(-71.499,-71.499,61.617,61.617) |
geographic |
Arctic Chukchi Sea Bering Strait Cape Prince of Wales |
geographic_facet |
Arctic Chukchi Sea Bering Strait Cape Prince of Wales |
genre |
Arctic Bering Strait Chukchi Chukchi Sea Diomede Island Alaska |
genre_facet |
Arctic Bering Strait Chukchi Chukchi Sea Diomede Island Alaska |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA623053 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766336630434562048 |