 |
图1 美国悬移质浓度和平均输沙量分布图 |
Figure 1. -- Average concentration of suspended sediment in rivers and average discharge of suspended
sediment at the mouths of selected rivers of the conterminous United States. Map was simplified from
Rainwater, 1962. See Table 1 for the ranking of rivers. |
 |
|
图2 美国阿拉斯加悬移质浓度和平均输沙量分布图
|
Figure 2. -- Average concentration of suspended sediment in rivers and average discharge of suspended
sediment at the mouths of selected large rivers of Alaska. (Source: Compiled by R.H. Meade from U.S.
Geological Survey data, including reports by Burrows and Harrold, 1983; Knott and Lipscomb, 1983; and
Scott, 1982.) |
美国主要河流的悬移质输沙量 |
Table 1. Discharge of suspended sediment to the coastal zone by
10 major rivers of the United States, about 1980 (tons/yr = tons per year)
(Meade and Parker, 1984). |
| Rivers |
Average annual |
| |
sediment discharge |
| |
(million tons/yr) |
| Rivers that discharge the largest sediment loads: |
--- |
| Mississippi (includes Atchafalaya River) |
230 |
| Copper |
80 |
| Yukon |
65 |
| Susitna |
25 |
| Eel |
15 |
| Brazos |
11 |
| Columbia: |
--- |
| Before Mount St. Helens eruption |
10 |
| (Since Mount St. Helens eruption -- approximate |
40 |
| Rivers with large drainage areas: |
--- |
| St. Lawrence |
1.5 |
| Rio Grande |
0.8 |
| Colorado |
0.1 | |
相关链接： |
| 美国河流泥沙数据库检索 |
| 美国河流年输沙量柱状图 |
| 美国河流推移质、悬移质和水温数据库 |
（以上资料源自美国USGS网站，谨表示感谢。）
|
