8/6/2019 UNOSAT PAK FL2010 Early Recovery Overview v2 LR
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ARABIAN
SEA
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Glide No: FL-2010-000141-PAK !!, !!"
Example of severe flooding of cultivated lands along Indus
Town of Ghaupur severely damaged by flooding from canal breach
on 8-9 August, has remained submerged for over month.
The Sukkur Barrage resisted unprecedented water volume stresses
and remained intact and functional providing local authorities with
limited but critical control over downstream Indus water flow.
Within the main flood water extent along the Indus there are
thousands of small villages and towns that (as illustrated here in
southern Sindh province) are either submerged under water or have
become literal islands within the Indus.
The Kotri Barrage resisted unprecedented water volume stresses
and has remained intact and functional.
Severe urban flooding of Kot Isa Shah Town
Total collapse of two major bridges along the east and westbound
lanes of the N5 approximately 700m to the north-east of the town
Sura Khel. All highway traffic diverted along an access road which
itself at risk of flooding. The east-west railroad lines unaffected
and operational.
70 meters of main bridge south of Chakdara town in Lower Dir
district, Khyber Pakhtunkhwa destoryed by flash flooding.
Jacobabad remained partially flooded in northern and eastern
sections of the city for over two weeks; completely encircled by
flood waters, leaving no functional land transport routes for aid
or evacuation.
Within Sukkur city, 12 IDP camps with several hundred individual
tents were identified as open from satellite imagery recorded on 29
August 2010
ALYSIS BACKGROUND: OSAT provided emergency response maps to
the
manitarian community with the support of the rnational Charter
Space and Major Disasters in aboration with several partners. This
product is issued upport of the Early Recovery Cluster and to
facilitate work of the UN in the damage assessment and post ster
phase. UNOSAT, the World Bank (GFDRR) and EC Joint Research Centre
(JRC) have a standing
aboration engagement for the use of GIS and lite analysis in
support of damage assessment.
ALYSIS SUMMARY: map presents a comprehensive overview of the
ximum flood water extent across the affected vinces in Pakistan
as detected by a constellation of llite sensors throughout the
course of this strophic disaster from 28 July to 7 September
2010.
od waters depicted on the map have been symbolized h two
classes, the first and primary class (shown in , represents the
maximum water extent across the cted provinces, as identified with
a very high degree confidence; the second class (shown in
orange),esents potential flood waters which were identified
h a moderate to low degree of confidence. Inset llite images
over selected locations across the cted region provide detailed
examples of the type of
mages and other flood related issues that will need to addressed
during the early recovery and
onstruction phases. Further, a spatial analysis ducted with
satellite-derived flood data provided a iminary estimate of the
potential number of villages,ns, infrastructure sites as well as
the length of roads railway tracks directly affected by the
flooding.
se results have been quantified by administrative vince (see
included table). Across the whole of the d affected region, it has
been estimated that over
90 villages, 135 towns/cities and 190 health facilities
were identified as potentially directly affected by the flood
waters, the majority of villages completely inundated or surrounded
by flood waters without open land evacuation routes. Over 5,000 km
of primary or secondary roads were likely submerged along with 400
km of railway tracks and 400 bridges. Please note that the numbers
of affected locations presented in this map and associated table
likely represent absolute minimumestimates for the area assessed;
because of limitations in available settlement and transportation
datasets it is certain that the numbers of affected villages, towns
and affected infrastructure / transportation lines are
significantly underestimated. This disaster analysis was conducted
with satellite imagery provided through the International Space
Charter as well as from ESA, NASAand USGS.
CALCULATING THE MAXIMUM FLOOD EXTENT The estimated total surface
area of all satellite-detected flood waters during this event was
37,280km2 based on cumulative analysis from 28 July to 16 September
2010.This estimate includes both water classes shown in the map and
has been controlled for the normal, pre-crisis water extent of
major rivers, lakes and reservoir water bodies using the best
available hydrological datasets.Because of the limited duration of
the reported flash floods in the northern provinces of Pakistan
(especially Khyber Pakhtunkhwa), as well as limitations of the
satellite sensors used for this analysis, it is likely that the
total extent of flood waters have been underestimated by
potentially upwards of several hundred square kilometres.
Nevertheless, the total impact of this probable underestimation is
essentially negligible when calculating the overall accuracy and
completeness of the flood water area estimation for the whole of
Pakistan.Based on these results, it is estimated that approximately
4.5% of the surface area of Pakistan was directly flooded during
the course of this event.
A significant majority of buildings in the town of Nawe Kili
were partially submerged under flood water from the Kabul River and
are likely severely damaged or destroyed. Almost all interior local
roads impassable.
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Map Scale for A1: 1:1,675, 000
ince BALOCHISTAN KHYBER
PAKHTUNKHWA P UN JA B SI ND H Others Total
age Count 174 808 4,038 2,750 10 7,780
wns / Cities 6 39 54 42 0 141
lth facilit ies 12 20 70 98 0 200
dges 11 183 139 95 1 429
ads (km) 313 772 1,613 2,630 21 5,350
lways (km) 10 27 169 199 0 406
reliminary Summary of Flood-Affected Populated Places and
Infrastructure
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