MARC details
| 000 -LEADER |
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| fixed length control field |
02659nam a2200325 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
EG-GiCUC |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
220802s2022 ua d f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
EG-GiCUC |
| Language of cataloging |
eng |
| Transcribing agency |
EG-GiCUC |
| 041 0# - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 049 ## - LOCAL HOLDINGS (OCLC) |
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| Holding library |
Deposite |
| 097 ## - Thesis Degree |
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| Thesis Level |
Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) |
|---|
| Classification number |
Cai01.12.01.Ph.D.2022.Ma.S |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Marwa Mohamed Abdelhameed Almowafy |
| 245 10 - TITLE STATEMENT |
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| Title |
Seasonal Variability of Gravity Wave Potential Energy Densities at Various Latitudes / |
| Statement of responsibility, etc. |
Marwa Mohamed Abdelhameed Almowafy ; Supervised M. Magdy Abdelwahab , Elsayed Mohamed Robaa |
| 246 15 - VARYING FORM OF TITLE |
|---|
| Title proper/short title |
التباين الموسمي لكثافة الطاقة الكامنة لموجة الجاذبية عند خطوط العرض المختلفة |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Cairo : |
| Name of publisher, distributor, etc. |
Marwa Mohamed Abdelhameed Almowafy , |
| Date of publication, distribution, etc. |
2022 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
165 P . : |
| Other physical details |
charts ; |
| Dimensions |
25cm |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Astronomy, Meteorology |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
In this study, we review the characteristics of the seasonal cycle of gravity waves between 2012 to 2020 at different latitudes using temperatures measured by lidar and satellite. We study the energy densities of gravity waves in three different latitudes: Andenes in Norway (69 N), K{u00A8}uhlungsborn in Germany ( 54 N), and Cairo in Egypt ( 30 N). For the first two locations, the data measured by both the lidar and the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) satellite are used in addition to ERA-5 reanalysis data. To separate the temperature perturbations caused by gravity waves, a filter on vertical wavelength ( z < 15 km) and another filter on wave period ( < 8 h) were applied. From these temperature fluctuations, the Gravity Wave Potential Energy Density (GWPED) is calculated. The comparison between the lidar and the satellite temperature analysis showed that both regions show an apparent seasonal variability of GWPED with a maximum in winter and a minimum in summer. However, the amplitude of winter to summer variability differs from lidar to satellite. GWPED from reanalysis is smaller compared to lidar, and the difference increases with altitude in winter. All measured and reanalysis data confirmed the larger GWPED of K{u00A8}uhlungsborn over Andenes, but the exact reason for this is not yet evident |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE |
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| Additional physical form available note |
Issued also as CD |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
space science and technology |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Gravity Waves |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
mid-and high latitudes |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Seasonal Variability |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Elsayed Mohamed Robaa , |
| Relator term |
|
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
M. Magdy Abdelwahab , |
| Relator term |
|
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Cataloger |
Amira |
| Reviser |
Cataloger |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Reviser |
Revisor |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Thesis |
