Feasibility Study for Future Space-Borne Coherent Doppler Wind Lidar, Part 1: Instrumental Overview for Global Wind Profile Observation

被引：22

作者：

Ishii, Shoken ^{[1
]}

Baron, Philippe ^{[1
]}

Aoki, Makoto ^{[1
]}

Mizutani, Kohei ^{[1
]}

Yasui, Motoaki ^{[1
]}

Ochiai, Satoshi ^{[1
]}

Sato, Atsushi ^{[2
,3
]}

Satoh, Yohei ^{[4
]}

Kubota, Takuji ^{[4
]}

Sakaizawa, Daisuke ^{[4
]}

Oki, Riko ^{[4
]}

Okamoto, Kozo ^{[3
,5
]}

Ishibashi, Toshiyuki ^{[5
]}

Tanaka, Taichu Y. ^{[5
]}

Sekiyama, Tsuyoshi T. ^{[5
]}

Maki, Takashi ^{[5
]}

Yamashita, Koji ^{[6
,11
]}

Nishizawa, Tomoaki ^{[7
]}

Satoh, Masaki ^{[8
,9
]}

Iwasaki, Toshiki ^{[10
]}

机构：

[1] Natl Inst Informat & Commun Technol, Appl Electromagnet Res Inst, Koganei, Tokyo, Japan

[2] Tohoku Inst Technol, Grad Dept Environm Informat Engn, Sendai, Miyagi, Japan

[3] Natl Inst Informat & Commun Technol, 4-2-1 Nukuikita Machi, Koganei, Tokyo 1848795, Japan

[4] Japan Aerosp Explorat Agcy, Tsukuba, Ibaraki, Japan

[5] Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan

[6] Japan Meteorol Agcy, Numer Predict Div, Tokyo, Japan

[7] Natl Inst Environm Studies, Atmospher Environm Div, Tsukuba, Ibaraki, Japan

[8] Univ Tokyo, Atmosphere & Ocean Res Inst, Tokyo, Japan

[9] Journal Meteorol Soc Japan, Tokyo, Japan

[10] Tohoku Univ, Grad Sch Sci, Sendai, Miyagi, Japan

[11] Japan Meteorol Agcy, Meteorol Satellite Ctr, Tokyo, Japan

来源：

JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN | 2017年 / 95卷 / 05期

关键词：

Doppler wind lidar; Earth observation satellite; global wind profile observation; numerical weather prediction; lidar simulator; observing system simulation experiment; SYSTEM SIMULATION EXPERIMENTS; BACKSCATTER HETERODYNE LIDAR; ATMOSPHERIC MOTION VECTORS; OBSERVING SYSTEM; DIFFERENTIAL ABSORPTION; PERFORMANCE; LASER; ACCUMULATION; PARAMETERS; DEPENDENCE;

D O I：

10.2151/jmsj.2017-017

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

A working group is studying the feasibility of a future Japanese space-borne coherent Doppler wind lidar (CDWL) for global wind profile observation. This study is composed of two companion papers: an instrumental overview of the space-borne CDWL for global wind profile observation (Part 1), and the wind measurement performance (error and bias) investigated using a full-fledged space-borne CDWL simulator (Part 2). This paper aims to describe the future space-borne CDWL in terms of technical points and observation user requirements. The future mission concept is designed to have two looks for vector wind measurement with vertical resolutions of 0.5 (lower troposphere: 0-3 km), 1 (middle troposphere: 3-8 km), and 2 km (upper troposphere: 8-20 km) and horizontal resolution of < 100 km along a satellite. The altitude and orbit of the satellite are discussed from a scientific viewpoint. The candidate altitude and orbit of the satellite are 220 km and an inclination angle of 96.4 degrees (polar orbit) or 35.1 degrees (low-inclination-angle orbit). The technical requirements of the space-borne CDWL are a single-frequency 2-mu m pulse laser with an average laser power of 3.75 W, two effective 40-cm-diameter afocal telescopes, a wide-bandwidth (> 3.4 GHz) detector, a high-speed analog-to-digital converter, and a systematic lidar efficiency of 0.08. The space-borne CDWL looks at two locations at a nadir angle of 35 degrees at two azimuth angles of 45 degrees and 135 degrees (225 degrees and 315 degrees) along the satellite track. The future space-borne CDWL wind profile observation will fill the gap of the current global wind observing systems and contribute to the improvement of the initial conditions for numerical weather prediction (NWP), the prediction of typhoons and heavy rain, and various meteorological studies.

引用

页码：301 / 317

页数：17

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