| ชื่อเรื่อง | : | Estimating deep seafloor interface and volume roughness parameters using the multibeam-hydrosweep system |
| นักวิจัย | : | Chakraborty, B. , Schenke, H.W. , Kodagali, V.N. , Hagen, R. |
| คำค้น | : | seafloor mapping , roughness , echosounders , multibeam sonar , backscatter |
| หน่วยงาน | : | National Institute Of Oceanography (NIO), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2545 |
| อ้างอิง | : | Marine Geodesy, Vol. 25(1-2); 19-26p. , http://drs.nio.org/drs/handle/2264/1448 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Utilizing a hull-mounted, multinarrow beam echosounder onboard RV Polarstern, variation of acoustic backscatter with incidence angles at two different sites in the Southern Oceans (Agulhas Plateau and the Riiser Larsen Sea) is measured. Using a composite roughness model, including water-sediment interface roughness and sediment volume roughness parameters the data was modeled. The model effectively uses the near normal incidence angle backscatter to determine the seafloor interface roughness parameters employing Helmholtz-Kirchhoff theory. Beyond 20 degrees incidence angles, an application of Rayleigh-Rice theory is made by using a necessary splicing technique (combining both of the theories at 20 degrees incidence angle).The estimated interface and volume roughness parameters are found to be in accordance with the known area geology. |
| บรรณานุกรม | : |
Chakraborty, B. , Schenke, H.W. , Kodagali, V.N. , Hagen, R. . (2545). Estimating deep seafloor interface and volume roughness parameters using the multibeam-hydrosweep system.
: National Institute Of Oceanography (NIO), India. Chakraborty, B. , Schenke, H.W. , Kodagali, V.N. , Hagen, R. . 2545. "Estimating deep seafloor interface and volume roughness parameters using the multibeam-hydrosweep system".
: National Institute Of Oceanography (NIO), India. Chakraborty, B. , Schenke, H.W. , Kodagali, V.N. , Hagen, R. . "Estimating deep seafloor interface and volume roughness parameters using the multibeam-hydrosweep system."
: National Institute Of Oceanography (NIO), India, 2545. Print. Chakraborty, B. , Schenke, H.W. , Kodagali, V.N. , Hagen, R. . Estimating deep seafloor interface and volume roughness parameters using the multibeam-hydrosweep system. : National Institute Of Oceanography (NIO), India; 2545.
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