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Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?
นักวิจัย : Mandapaka, Pradeep V. , Germann, Urs. , Panziera, Luca. , Hering, Alessandro.
คำค้น : DRNTU::Science::Physics::Meteorology and climatology.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Mandapaka, P. V., Germann, U., Panziera, L., & Hering, A. (2012). Can Lagrangian Extrapolation of Radar Fields Be Used for Precipitation Nowcasting over Complex Alpine Orography?. Weather and Forecasting, 27(1), 28-49. , http://hdl.handle.net/10220/8181 , http://dx.doi.org/10.1175/WAF-D-11-00050.1
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Weather and forecasting
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this study, a Lagrangian radar echo extrapolation scheme (MAPLE) was tested for use in very short-term forecasting of precipitation over a complex orographic region. The high-resolution forecasts from MAPLE for lead times of 5 min-5 h are evaluated against the radar observations for 20 summer rainfall events by employing a series of categorical, continuous, and neighborhood evaluation techniques. The verification results are then compared with those from Eulerian persistence and high-resolution numerical weather prediction model [the Consortium for Small-scale Modeling model (COSMO2)] forecasts. The forecasts from the MAPLE model clearly outperformed Eulerian persistence forecasts for all the lead times, and had better skill compared to COSMO2 up to lead time of 3 h on average. The results also showed that the predictability achieved from the MAPLE model depends on the spatial structure of the precipitation patterns. This study is a first implementation of the MAPLE model over a complex Alpine region. In addition to comprehensive evaluation of precipitation forecast products, some open questions related to the nowcasting of rainfall over a complex terrain are discussed.

บรรณานุกรม :
Mandapaka, Pradeep V. , Germann, Urs. , Panziera, Luca. , Hering, Alessandro. . (2555). Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Mandapaka, Pradeep V. , Germann, Urs. , Panziera, Luca. , Hering, Alessandro. . 2555. "Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Mandapaka, Pradeep V. , Germann, Urs. , Panziera, Luca. , Hering, Alessandro. . "Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Mandapaka, Pradeep V. , Germann, Urs. , Panziera, Luca. , Hering, Alessandro. . Can Lagrangian extrapolation of radar fields be used for precipitation nowcasting over complex Alpine orography?. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.