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Investigate the relationship between Storm Formation and Tropical Cyclone Genesis Potential Index in the Vietnam East Sea
Abstract: In this paper, the relationship between Tropical Cyclone (TC) Genesis Potential Index (GPI) and the number of TC (NTC) associated with ENSO over the Vietnam East Sea (VES) was investigated. Observed TC data of the Regional Specialized Meteorological Center (RSMC) Tokyo Typhoon Center and ERA Interim reanalysis data for the period 1985-...
11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 526 | Lượt tải: 0
Sequence stratigraphy of South Central Coastal Quaternary sandy formation and stratigraphic significance
Abstract: The South Central Coastal Quaternary sandy formation has been studied by many authors according to different objectives, mainly for establishing quaternary geological maps ata different scale. There are 5 sedimentary cycles established based on the absolute age of the sand, that was analyzed by the method of thermoluminescent dating of...
17 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 566 | Lượt tải: 0
Method of interpreting the high resolution seismic profiles: Principle and application in coastal shallow water area of Red River delta
Abstract: Establishing a process of interpreting the high-resolution seismic profile according to a sedimentary geological point of view is a very urgent task. The explanation process can be divided into the following steps: (1) Boundary demarcation of sequences based on unconformable surfaces showing signs of erosion of the river bed; (2) Analy...
16 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 679 | Lượt tải: 0
Seasonal predictions of the number of tropical cyclones in the VietNam east sea using statistical models
Abstract: In this study, the equations for estimating the number of tropical cyclones (TCs) at a 6- month lead-time in the Vietnam East Sea (VES) have been developed and tested. Three multivariate linear regression models in which regression coefficients were determined by different methods, including 1) method of least squares (MLR), 2) minimum...
13 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 605 | Lượt tải: 0
Application of DNDC model for mapping greenhouse gas emission from paddy rice cultivation in Nam Dinh province
Abstract: This study used the Denitrification-Decomposition (DNDC) model to calculate greenhouse gas emissions from a paddy rice cultivation in Nam Dinh province. The results show that the total CH4 emission from paddy rice field in Nam Dinh province ranges from 404 to 1146kg/ha/year. Total N2O emissions range from 0.8 to 4.2 kg/ha/year; The tot...
10 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 643 | Lượt tải: 0
A study to assess the effectiveness of constructed wetland technology for polluted surface water treatment
Abstract: The study aims to assess the applying effectiveness of constructed wetland technology for polluted surface water treatment. The experimental models were operated with 2 hydraulic loadings of 500mL/min/m2 (T1) and 1500mL/min/m2 (T2). The reed grass (Phragmites australis) was selected for the studying process. The surface water resource ...
12 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 652 | Lượt tải: 0
Variation of geosystems in Holocene Red river coastal zone
Abstract: The geosystem is a natural conditional system that is integrated by the lithofacies and ecosystems in space and in time in relation to sea level change, climate change, and tectonic movement. Another way, the geosystem is a natural unit including the causal relationship between ecosystem and lithofacies, in which the lithofacies is cau...
18 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 545 | Lượt tải: 0
Evolution of geological structural and sedimentary environment change in miocene of Phu Khanh basin
Abstract: Phu Khanh basin located in the central of Vietnam and bounded by the longitude of 109o-112oE and the latitude of 11o-15oN. The geological evolution history of the basin in Miocene is very complicated, included three sedimentary cycles of Early Miocene (N11), Middle Miocene (N12) and Late Miocene (N13). Each of these sedimentary cycles ...
23 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 540 | Lượt tải: 0
Diversity of Medicinal Plants at Phia Oac - Phia Den National Park, Nguyen Binh District, Cao Bang Province
Abstract: The results of our research at Phia Oac - Phia Den National Park show that: the number of medicinal plant species found in the surveyed area is 472 species, belonging to 323 genera, 128 families. There are 110 species of Angiospermae (85.94%), 10 species of Pteridophyta (7.81%), 6 species of Gymnospermae (4.69%) and 2 species of Lycopo...
8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 627 | Lượt tải: 0
Đánh giá sự tích lũy và rủi ro sinh thái một số kim loại nặng trong trầm tích mặt khu vực hạ lưu sông Đáy
Tóm tắt: Hệ thống lưu vực sông Nhuệ - Đáy đang chịu sự gia tăng về số lượng và lưu lượng nước thải từ các hoạt động sản xuất, sinh hoạt. Các nguồn thải mang theo các chất hữu cơ, kim loại nặng, vi sinh vật, tích lũy trong trầm tích và hệ sinh thái dưới nước gây ảnh hưởng đến môi trường nước và hệ sinh thái. Trong nghiên cứu này, sự tích lũy kim ...
8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 652 | Lượt tải: 0