DROUGHT AND REFUGEE in somalia
•Subject:
RESEARCH METHODOLOGY
•TOPIC DROUGHT AND REFUGEE
•INTRODACTION
•What is a drought?
The word ‘Drought’ is always a difficult one to define, because it is often used in more than one context. In simple terms, it is the absence of water for a long period of time, at a place where it is considered ‘not normal’ compared to its usual conditions.
The distribution of all the water on the earth’s surface is not even. Some places have lots of fresh water (rivers, lakes, lagoons, ponds etc.) and are continuously replenished by rainfall, runoffs and water from underground. Others places too are known to have very little water.
The word ‘Drought’ is always a difficult one to define, because it is often used in more than one context. In simple terms, it is the absence of water for a long period of time, at a place where it is considered ‘not normal’ compared to its usual conditions.
The distribution of all the water on the earth’s surface is not even. Some places have lots of fresh water (rivers, lakes, lagoons, ponds etc.) and are continuously replenished by rainfall, runoffs and water from underground. Others places too are known to have very little water.
•CONT..
•
•CONT….
•A drought is a period of
below-average precipitation in a given region, resulting in prolonged shortages
in its water supply, whether atmospheric, surface
water or ground water. A drought can last
for months or years, or may be declared after as few as 15 days. It
can have a substantial impact on the ecosystem and agriculture of the affected
regionl and harm to the
local economy. Annual dry
seasons in the tropics significantly
increase the chances of a drought developing and subsequent bush fires. Periods
of heat can significantly worsen drought conditions by hastening evaporation
of water vapor.
•Types of drought?
•Besides
those, here are some common scenarios of droughts:
Meteorological drought:
This kind is usually determined by the general lack of moisture in the weather such as lack of precipitation, and the play of other weather conditions such as dry winds, high temperatures and so on. It is expressed in relation to the average conditions of the region over a long period of time. It is usually an indicator of potential water crisis if the condition is prolonged. Meteorological drought can begin and end immediately.
Agricultural drought:
This is when atmospheric moisture is reduced to the extent that soil moisture is affected. Here, crops and animals are affected and evapotranspiration is also affected. It is often the signs one sees when a meteorological drought is at play, but not before a hydrological drought.
Meteorological drought:
This kind is usually determined by the general lack of moisture in the weather such as lack of precipitation, and the play of other weather conditions such as dry winds, high temperatures and so on. It is expressed in relation to the average conditions of the region over a long period of time. It is usually an indicator of potential water crisis if the condition is prolonged. Meteorological drought can begin and end immediately.
Agricultural drought:
This is when atmospheric moisture is reduced to the extent that soil moisture is affected. Here, crops and animals are affected and evapotranspiration is also affected. It is often the signs one sees when a meteorological drought is at play, but not before a hydrological drought.
•What causes drought?
•Lack of rainfall (or precipitation)
Droughts can occur when there is the lack of ‘expected’ precipitation (rain and snow). Note that we say ‘expected’ because the lack of rain alone does not mean a drought. Some regions can go for months without any rain, and that would be ‘normal’ for them. Farmers plant in anticipation of rains and so when the rains do not come, and irrigation infrastructure is absent, agricultural drought occur.
Surface water flow
Some regions are also well distributed with surface water (streams and rivers) that have their sources from far away mountains and watersheds. These surface waters may dry out if the flow from their sources upstream is affected. Hydro-electric dams and irrigation systems are some of the economic activities that can reduce the amount of water flowing to other areas downstream.
Droughts can occur when there is the lack of ‘expected’ precipitation (rain and snow). Note that we say ‘expected’ because the lack of rain alone does not mean a drought. Some regions can go for months without any rain, and that would be ‘normal’ for them. Farmers plant in anticipation of rains and so when the rains do not come, and irrigation infrastructure is absent, agricultural drought occur.
Surface water flow
Some regions are also well distributed with surface water (streams and rivers) that have their sources from far away mountains and watersheds. These surface waters may dry out if the flow from their sources upstream is affected. Hydro-electric dams and irrigation systems are some of the economic activities that can reduce the amount of water flowing to other areas downstream.
•CONT….
•Human factors
Forests (trees) play a key role in the water cycle, as they help reduce evaporation, store water and also contribute to atmospheric moisture in the form of transpiration. This means, cutting down trees (deforestation)in the name of economics, will expose surface water to more evaporation. It will also reduce the ability of the ground to hold water and make it easier for desertification to occur. It can set off drying conditions, especially for smaller water bodies. Cutting down trees is known to reduce a forest’s watershed potential.
Forests (trees) play a key role in the water cycle, as they help reduce evaporation, store water and also contribute to atmospheric moisture in the form of transpiration. This means, cutting down trees (deforestation)in the name of economics, will expose surface water to more evaporation. It will also reduce the ability of the ground to hold water and make it easier for desertification to occur. It can set off drying conditions, especially for smaller water bodies. Cutting down trees is known to reduce a forest’s watershed potential.
•Effects of droughts
•Lessened amounts of precipitation over an area for an
extended period of time has many effects on farmland and crops. Drought
conditions result from a lack of precipitation and this has many effects on the
surrounding land and weather conditions. Drought conditions can worsen after
prolonged periods of no rainfall, especially in areas where the water supply is
short.
•Drought can have
serious health, social, economic and political impacts with far-reaching
consequences.
•Water is one of the
most essential commodities for human survival, second only to breathable air.
So when there is a drought, which by definition means having too little water
to meet current demands, conditions can become difficult or dangerous very quickly.
•
•Cont….
•Environmental impact
of droughts
of droughts
Plants, animals, climate, soils, rocks and many others are all affected by drought conditions. Some biotic and a biotic factors recover when the droughts are over. Others never recover again. Here are a few examples:
Soil moisture is key for the breakdown of organic matter. Droughts lower the quality of soils, because there is less organic activity, more wind erosion, and soil insects or organisms perish.
Water bodies (lakes, creeks, ponds, lagoon and lakes) dry out, and water animals die. This is called habitat destruction. When aquatic animals (and other wild life) die, entire food chains and ecosystems are also affected.
•CONT…
•Desertification is when fertile lands (vegetation lands)
become bare and infertile, often as a result of overgrazing, deforestation and
other economic activity. Droughts make this process even worse and eliminate
any chances of the land recovering.
… The health and quality of Freshwater Biomes such as lakes and ponds, rivers and streams, wetlands are affected and living organism in there are also endangered.
… The health and quality of Freshwater Biomes such as lakes and ponds, rivers and streams, wetlands are affected and living organism in there are also endangered.
•solution,drought
•Desalination
•Large-scale desalination is a process
through which ocean water is pumped to a treatment facility where the salt is
extracted through a process of reverse osmosis to make the water fit for
domestic use. San Diego County is currently constructing the largest
desalination plant in the western hemisphere, at a cost of $1 billion. That plant, located in
Carlsbad, will provide enough safe water for approximately 300,000 people, and
will serve as a major test of the feasibility and expense of utility-scale
desalination technology when it begins operation in November.
•
•Cont…
•Atmospheric
Water .
•In addition to the
Chilean-style systems, there are techniques that have been developed for
atmospheric water generation which work in areas where the climate is less
conducive to fog. Many of these systems rely on harvesting water from dew or
humidity, but one of the largest players in the field, Aqua Sciences, have a proven
ability to harvest rain in almost any climate.
•
•Cont….
•REFUGEE
•CONT…..
•The
UN has officially declared famine in parts of southern Somalia—regions of Lower
Shabelle and southern Bakool. It is predicted
that the entire south of Somalia will face famine within the next two months.
Operation USA is working to assess unmet needs on the ground, with its initial
response focusing on water resource needs in Kenya’s Dadaab refugee camps. The Dadaab camps–the largest in
the world–are reported to receive as many as 1,300 refugees a day, the majority
fleeing war-torn Somalia. These camps house almost 400,000 displaced people in
three camps originally designated for 90,000.
•Other
countries in the Horn of Africa are being severely affected by drought.
Successive seasons of failed rains—combined with increasing food prices,
conflict and limited humanitarian access—have resulted in food and water
shortages, acute malnutrition and mass displacement throughout the region. The
lack of rain has also contributed to massive livestock deaths undermining the
livelihoods of those who depend on them for economic and food security.
Estimates are that there are at least 1.5 million displaced people—and 10
million people in need of immediate food assistance as a result of this crisis.
•
•Between
July 2011 and mid-2012, a severe drought affected the
entire East Africa region.[7] Said to be
"the worst in 60 years",[8] the drought
caused a severe food crisis across Somalia, Djibouti, Ethiopia and Kenya that threatened
the livelihood of 9.5 million people.[6] Many refugees
from southern Somalia fled to neighboring Kenya and Ethiopia, where crowded,
unsanitary conditions together with severe malnutrition led to a large
number of deaths.[9] Other countries
in East Africa, including Sudan, South Sudan and parts
of Uganda, were also affected
by a food crisis.
•
•By
15 September, more than 920,000 refugees from Somalia had reportedly fled to
neighboring countries, particularly Kenya and Ethiopia.[53] At the height
of the crisis in June 2011, the UNHCR base in Dadaab, Kenya hosted at
least 440,000 people in three refugee camps, though the maximum capacity was
90,000.[54] More than 1,500
refugees continued to arrive every day from southern Somalia, 80 per cent of
whom were women and children.[55][56] UN High
Commissioner for Refugees spokeswoman
•Cont….
•In
July 2011, Dolo Odo, Ethiopia also
hosted at least 110,000 refugees from Somalia, most of whom had arrived
recently. The three camps at Bokolomanyo, Melkadida, and Kobe all
exceeded their maximum capacity; one more camp was reportedly being built while
another was planned in the future. Water shortage reportedly affected all the
facilities.
•Cont….
•Roobka,ka,da’ay,mogdishu
•Mahadcelin
•Prof;
Omer Abdi Mohamed and all
students
•
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