Freshwater Water Monitoring Stations and Treaties-Tuvalu

<font size='2'><span style='line-height: 1.3846153846153846;'>This map highlights 8962 stations with monthly discharge
data, including data derived daily up to 20 December 2013. The GRDB (Global Runoff DataBase) is built on
an initial dataset collected in the early 1980s from the responses to WMO
(World Meteorological Organization request to its member countries to provide a
global hydrological data set to complement a specific set of atmospheric data
in the framework of the First Global GARP Experiment (FCGE).</span><span style='line-height: 115%; color: rgb(32, 32, 32); background-color: white;'> </span><span style='line-height: 1.3846153846153846;'>The initial dataset of monthly river
discharge data over a period of several years around 1980 was supplemented with
the UNESCO monthly river discharge data collection 1965-85. Today the
database comprises discharge data of nearly 9.000 gauging stations from all
over the world. Since 1993 the total number of station-years has increased by a
factor of around 10.</span></font><p></p><div><font size='2'><br /></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'><b><u>Credits and partnerships:</u></b></span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>OSU - College of Earth, Ocean and Atmospheric Sciences</span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>Carniege </span>Corporation<span style='line-height: 1.3846153846153846;'> of New YGloabl ork</span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>NASCE - Northwest Alliance for Computational Science &amp; Engineering</span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>International Water Management Institute</span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>UNESCO - United Nations Educational, Scientific and Cultural Organisation</span></font></div><div><font size='2'><span style='line-height: 1.3846153846153846;'>USGS - United States Geological Survey</span></font></div>

本地图标注了8962个拥有月径流量数据的水文测站，其中包含截至2013年12月20日的逐日派生数据。全球径流量数据库（Global Runoff DataBase, GRDB）的构建基础为20世纪80年代初收集的初始数据集，该数据集源自世界气象组织（World Meteorological Organization, WMO）向其成员国发出的专项请求：要求成员国提供全球水文数据集，以补充第一次全球大气研究计划第一次全球试验（First Global GARP Experiment, FCGE）框架下的特定大气数据集。

1980年前后数年的月河流径流量初始数据集，补充了联合国教育、科学及文化组织（UNESCO）1965-1985年收集的月河流径流量数据集。目前该数据库涵盖了来自全球各地近9000个水文测站的径流量数据。自1993年以来，测站年数据总量增长了约10倍。

### 致谢与合作方：
1. OSU地球、海洋与大气科学学院
2. 纽约卡内基基金会
3. 西北计算科学与工程联盟（NASCE）
4. 国际水资源管理研究所
5. 联合国教育、科学及文化组织（UNESCO）
6. 美国地质调查局（USGS）