Sự không ổn định của sóng hành tinh phi tuyến và hiện tượng chặn

Advances in Atmospheric Sciences - Tập 9 - Trang 173-190 - 1992
Yong L. McHall1
1Dept. of Meteorology, University of Edinburgh, UK

Tóm tắt

Sự không ổn định của các lưu thông sóng địa động lực liên quan đến các quá trình phi tuyến trong các phương trình cân bằng nhiệt độ trung bình theo phương ngang được nghiên cứu. Kết quả cho thấy các sóng hành tinh có thể bị mất ổn định do sự tác động nhiệt trong các lớp baroclinic cụ thể, được gọi là các lớp bẻ gãy. Các điều kiện quan trọng của sự không ổn định sẽ được đề cập. Trong tầng đối lưu, các điều kiện này có thể được cung cấp trong các vùng chặn và sự phát triển của các nhiễu loạn hành tinh được đặc trưng rõ rệt bởi sự khởi đầu, duy trì và suy tàn của các khối quan sát được. Toàn bộ sự kiện chặn không thể được mô tả chỉ là một quá trình barotropic hoặc baroclinic. Các hạn chế trong việc nghiên cứu tương tác sóng-sóng bằng cách sử dụng các mô hình quang phổ hoặc phân tích quang phổ cũng sẽ được thảo luận.

Từ khóa

#sự ổn định #sóng hành tinh #quá trình phi tuyến #lớp baroclinic #tương tác sóng-sóng

Tài liệu tham khảo

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