AI SearchAnalytical model of salinity intrusion in the lower Meghna estuary, Bangladesh (Record no. 5345)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04324nas|a2200457 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162532.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 101001s2001 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11835874 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. WM-00-09 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Khan, Mohammad Arif Badsha |
| 245 10 - TITLE STATEMENT | |
| Title | Analytical model of salinity intrusion in the lower Meghna estuary, Bangladesh |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2001 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 67 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. WM-00-09 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements of the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2001 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In the present study, Interaction of tide and river flows in Lower Meghna is investigated using the method of harmonic analysis and analytical solutions. As the records of water level along the river are contributed by various constituents of tide so harmonic analysis has been applied to decompose the complicated interaction of the fresh water discharge with various constituents of tides into its individual interaction with each constituent. Four main constituents are included in this study. Results of water level obtained by applying the analytical model to stations along the Lower Meghna are compared very well with the observed values. In analytical model, the governing equations are solved using the approximation method of perturbation to investigate the interaction of tide and fresh water discharge of lower Meghna river of which the cross-section and width varies exponentially. The zeroth order solution is obtained by direct integration and the IPPEN's solution is adopted for the first order solution. The relationship of important dimensionless parameters of the tide with fresh water discharge, especially the dimensionless damping modulus, has been established. These informations are required to calculate the salinity intrusion in estuaiy. Profiles of maximum and mean salinity as well as the intrusion length along the Lower Meghna river has been investigated. The Lower Meghna River shows a period of low flow in AprilMay. During this period saline water from the sea, under the actions of tide and diffusion, intrudes into the lower reach of the river, causing salinity pollution. Tidal convection of salinity profile has been studied. Flow conditions at different stations during periods of low flow has been investigated. Similar to the interaction of tide and river flow, analytical solutions have been described in decomposing the steady state component of salinity from the unsteady component of tidal convection of salinity. Comparison between computed and observed average salinity along the length from downstream boundary has been found. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Saltwater encroachment |
| Geographic subdivision | Bangladesh |
| General subdivision | Lower Meghna estuary |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Suphat Vongvisessomjai, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mark, Ole, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Izumi, Norihiro, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sutat Weesakul, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Iida, T., |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Danida., |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. WM-00-09 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B11193">http://203.159.5.9/ait-thesis/detail.php?q=B11193</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11835874 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240611 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 000825 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120330526 |
| CREATED | CREATED : 2000-05-13 |
| RECORD Id | RECORD # : i12259202 |
| LPATRON | LPATRON : 1026204 |
| LCHKIN | LCHKIN : 2017-11-04 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 1 |
| -- | TOT CHKOUT : 6 |
| -- | TOT RENEW : 9 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120593164 |
| CREATED | CREATED : 2000-05-13 |
| RECORD Id | RECORD # : i12259214 |
| LPATRON | LPATRON : 1026204 |
| LCHKIN | LCHKIN : 2016-08-22 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 9 |
| -- | TOT RENEW : 4 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160042676 |
| CREATED | CREATED : 2016-03-22 |
| RECORD Id | RECORD # : i1290255x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121099880 |
| CREATED | CREATED : 2023-11-10 |
| RECORD Id | RECORD # : i13467955 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no. WM-00-09 | 30050120330526 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no. WM-00-09 | 30050120593164 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. WM-00-09 | 30050160042676 | 17/08/2026 | 17/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. WM-00-09 | 30050121099880 | 17/08/2026 | 3 | 17/08/2026 | 20-AIT Publication |