Seabird distributions during the upwelling season of 2000, northern California Current system, GLOBEC.

As a part of the GLOBEC-Northeast Pacific project, seabird populations were surveyed on two cruises to northern portion of the California Current System. The surveys were conducted simultaneously in June (onset of upwelling) and August (mature phase of upwelling).

Observations were conducted continuously during daylight, using a 300-m-wide transect strip. Within that strip, birds were counted that occurred within the 90 degree quadrant off the ship's bow. Two observers were on watch during all survey periods.

R/V New Horizon cruises:
NH0005 28 May - 13 June 2000
NH0007 27 July - 12 Aug 2000

Note: A second survey was conducted in 2002. As of (Sept 12, 2005), the 2002 data set has not been released by the PI.

作为GLOBEC-东北太平洋项目的组成部分，研究团队在两次前往加利福尼亚流系统北部海域的科考航次中开展了海鸟种群调查。两次调查分别于上升流起始期的6月与上升流盛期的8月同步开展。

调查于日间持续进行，采用宽度为300米的断面条带法实施观测。在该条带范围内，仅统计位于船艏两侧90度扇形区域内的海鸟个体。所有调查时段均安排两名观测员值守。

“新视野号”（R/V New Horizon）科考航次：
NH0005：2000年5月28日—6月13日
NH0007：2000年7月27日—8月12日

备注：2002年曾开展第二次调查。截至2005年9月12日，该2002年数据集尚未由首席研究员（Principal Investigator，PI）公开。