塔帕若斯国家森林 KM 67 塔站 LBA-ECO CD-10 H2O 剖面图
简介
该数据集报告了在帕拉西部(圣塔伦)67 公里原始森林塔站(图 1)测得的水蒸气浓度垂直剖面图。该站位于巴西中北部的塔帕若斯国家森林内。测量时间从 2002 年 1 月持续到 2006 年 1 月。在塔的 8 个高度(62.2、50、39.4、28.7、19.6、10.4 和 0.91 米)测量了水蒸气浓度。以 1000 sccm(标准立方厘米/分钟)的速度依次通过 8 个剖面入口(每个高度持续 2 分钟)抽取样品空气,然后同时从所有 8 个高度抽取混合空气样本,以获得总柱积分(每 20 分钟一次),并用红外气体分析仪(IRGA,LI-6262,Licor,内布拉斯加州林肯市)进行分析。数据以 1 小时为间隔取平均值。 H2O 的校准采用了两种独立的 IRGA 浓度测量校准方法:(a) 环境温度测量值与声波温度测量值的夜间关系;(b) 安装在塔上的冷镜露点湿度计。有关校准方法的更多详细信息,请参阅 Hutyra (2007) 的附录 A。共置测量包括使用塔装闭路 Licor 6262 气体分析仪和 Campbell CSAT3 声波风速计在两个高度(58 米和 47 米)测量 CO2 和 H2O 的涡流通量。此外,还测量了一套全面的气象参数(气温、气压、PAR、净辐射、降水等)。经作者许可,Hutyra, LR 2007. 亚马逊雨林的碳和水交换。博士论文,地球与行星科学系,哈佛大学,马萨诸塞州剑桥市,已作为配套文件包含在内。
摘要
Data File Description
column variable description (column heading) 1 "JDstart(GMT)" decimal day (GMT, continuous from 1/1/00) NOTE 1: Tapajos Forest Local time (LT) = GMT - 4 hours NOTE 2: these times are time at the BEGINNING of the hour-long data aggregation interval, i.e., data at 12:00 are from aggregating measurements between 12:00 and 13:00 2 1 H2O concentration (ppt) at level 1 @ 62.24m 3 2 H2O concentration (ppt) at level 2 @ 50.05m 4 3 H2O concentration (ppt) at level 3 @ 39.41m 5 4 H2O concentration (ppt) at level 4 @ 28.71m 6 5 H2O concentration (ppt) at level 5 @ 19.57m 7 6 H2O concentration (ppt) at level 6 @ 10.42m 8 7 H2O concentration (ppt) at level 7 @ 3.05m 9 8 H2O concentration (ppt) at level 8 @ 0.91m 10 9 H2O concentration (ppt), instantaneous average of levels 1-8 Missing value code is "NA" Values are comma separated |
Sample Data Records:
All of the profile data are reported in km67.h2o.profile.2002.2006.txt .
JDstart(GMT),1,2,3,4,5,6,7,8,9 733.708333333333,28.088,27.895,27.868,28.125,28.541,29.1185,29.4125,31.511,29.3095 733.75,27.757,27.9535,29.5455,29.726,29.696,29.642,30.1245,31.568,29.7096666666667 ... 2210.5,30.1553333333333,30.2425,29.9885,30.447,30.8395,31.515,33.1545,33.1905,NA 2210.54166666667,29.438,29.5433333333333,29.774,30.115,30.6063333333333,31.113,32.3696666666667,33.208,NA 2210.58333333333,20.477,20.6143333333333,20.1033333333333,NA,NA,21.574,23.614,23.3925,28.0615 |
Site boundaries: (All latitude and longitude given in degrees and fractions)
Site (Region) | Westernmost Longitude | Easternmost Longitude | Northernmost Latitude | Southernmost Latitude | Geodetic Datum |
---|---|---|---|---|---|
Para Western (Santarem) - km 67 Primary Forest Tower Site (Para Western (Santarem)) | -54.959 | -54.959 | -2.857 | -2.857 | World Geodetic System, 1984 (WGS-84) |
代码
引用
Hutyra, L.R., J. W. Munger, E. W. Gottlieb, B. C. Daube, P. B. Camargo and S. C. Wofsy. 2008. LBA-ECO CD-10 H2O Profiles at km 67 Tower Site, Tapajos National Forest. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
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