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The Dead Sea EarthCache

Hidden : 1/11/2016
Difficulty:
2 out of 5
Terrain:
1.5 out of 5

Size: Size:   other (other)

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Geocache Description:



ים המלח הוא אגם מלח הממוקם בין ישראל לירדן, 422 מטר (1,385 רגל) מתחת לפני הים, כך שחופיו הם הנקודה הנמוכה ביותר על פני השטח בעולם. עומק ים המלח הוא 378 מ '(1,240 רגל) - כך שהוא האגם המלוח-על העמוק ביותר בעולם. זהו גם אחד של גופי המים המלוחים ביותר, עם 33.7% מליחים. זהו פי 8.6 ממליחות האוקיינוס. מליחות זה גורמת לסביבה קשה שבו צמחים לא יכולים לפרוח, ומכאן שמו

אורך ים המלח הוא 67 ק"מ (42 מייל) ורוחבו 18 ק"מ (11 מייל) בנקודה הרחבה ביותר. היא שוכנת באזור בקעת הירדן. נהר הירדן הוא מקור המים העיקרי רק זורם לים המלח, אם כי יש מעיינות רבות שנתיות קטנות מתחת ומסביב לים המלח, והם יוצרים ברכות ובורות טובענית בשולים

יורדים כמעט 100 מ"מ (4 אינץ ') גשמים בשנה בחלקו הצפוני של ים המלח, אף בקושי 50 מ"מ (2 אינץ') בחלקו הדרומי. הצחיחות של אזור ים המלח הוא בשל ההשפעה מדבר צל הגשם של הרי יהודה. ההרים ממזרח לים המלח מקבלים יותר גשמים מאשר ים המלח עצמו



English:

The 'Dead Sea is a salt lake between Israel and the West Bank to the west, and Jordan to the east. It is 422 metres (1,385 ft) below sea level, and its shores are the lowest point on the surface of Earth on dry land. The Dead Sea is 378 m (1,240 ft) deep, the deepest hypersaline lake in the world. It is also one of the world's saltiest bodies of water, with 33.7% salinity.
Only Lake Assal (Djibouti), Garabogazköl and some hypersaline lakes of the McMurdo Dry Valleys in Antarctica (such as Don Juan Pond and perhaps Lake Vanda) have a higher salinity. It is 8.6 times as salty as the ocean. This salinity makes for a harsh environment where animals cannot flourish, hence its name. The Dead Sea is 67 kilometres (42 mi) long and 18 kilometres (11 mi) wide at its widest point. It lies in the Jordan Rift Valley, and its main tributary is the Jordan River.

The Dead Sea is an endorheic lake located in the Jordan Rift Valley, a geographic feature formed by the Dead Sea Transform (DST). This left lateral-moving transform fault lies along the tectonic plate boundary between the African Plate and the Arabian Plate. It runs between the East Anatolian Fault zone in Turkey and the northern end of the Red Sea Rift offshore of the southern tip of Sinai.

The Jordan River is the only major water source flowing into the Dead Sea, although there are small perennial springs under and around the Dead Sea, creating pools and quicksand pits along the edges.[6] There are no outlet streams.

Rainfall is scarcely 100 mm (4 in) per year in the northern part of the Dead Sea and barely 50 mm (2 in) in the southern part. The Dead Sea zone's aridity is due to the rainshadow effect of the Judean Hills. The highlands east of the Dead Sea receive more rainfall than the Dead Sea itself.

To the west of the Dead Sea, the Judean Hills rise less steeply, and are much lower, than the mountains to the east. Along the southwestern side of the lake is a 210 m (700 ft) tall halite formation called "Mount Sodom".

Logging Tasks:

1) To document the change of the sea level over the next years please walk from the given coordinates straight to the waterfront and measure the distance. Also please send me your coordinates and the altitude shown on your GPS.
2) Observe the water front. What can you see and feel? Describe the size, texture and colour. What can´t you see in the Dead Sea?
3) Please explain a method to determine the level of salinity.

To log your visit, send me the answers via my profile.

You can only get to the beach during the opening times of the spa.  

Additional Hints (No hints available.)