River and Reservoir Watch
Version 3.7 |
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This work and associated data are protected by a Creative Commons
License. |
River
Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry |
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Lake Nasser |
Nile |
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Center: |
31.12 |
Long. |
S/N rating: |
Fair |
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GFDS Site Number |
11842 |
Modis
History |
Sudan |
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Center: |
21.63 |
Lat. |
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GEE
Time Lapse |
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Learn more about this
reservoir |
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sq km |
WBM contributing area |
Last measured: |
17-Jan-21 |
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Obtain Data |
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Status: |
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#N/A |
of maximum |
Status: |
#N/A |
(1, low; 2, normal; 3, high; 4, very high)* |
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#N/A |
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*See below for threshold definitions |
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Technical
Summary |
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Recent
part of record. Five-day forward moving
average is applied. |
10-day forward moving average is applied. |
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Thresholds (adjusted for each day of the
year) |
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17-Jan-21 |
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Complete
record. Five-day forward moving average is applied |
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<25th percentile |
Low, "1" |
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25th: |
#N/A |
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25th-74th percentile |
Normal, "2" |
75th: |
#N/A |
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75th-90th percentile |
High, "3" |
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90th: |
#N/A |
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>90th percentile |
Very high, "4" |
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Percentiles are for a fixed 10 year
reference period (2003-2013) |
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Site
statistics: |
noise*: |
0.016 |
signal/noise: |
4.3 |
signal**: |
0.070 |
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* average of daily signal change, 1998-2010. |
**range of signal, 2003-2007 |
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Also
provided below are G-REALM Height Variations from TOPEX/POSEIDON/Jason-1 and
Jason-2/OSTM Altimetry |
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The scale
is shown on the right axis. These are
relative lake height variations computed from TOPEX/POSEIDON (T/P), Jason-1
and Jason-2/OSTM altimetry |
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with respect to
a datum that is based on a single fly-over date of the Jason-2/OSTM
mission. |
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