Tuvalu – Basic Figures

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Tuvalu – Basic Figures Table of Contents TUVALU MAP ..................................................................................................................................................... 2 POPULATION OVERVIEW OF TUVALU (PROJECTIONS FROM CENSUS 2002 & GOVERNMENT ESTIMATES 2011)) ............................................................................................................................................ 3 DEMOGRAPHIC ANALYSIS OF TUVALU ..................................................................................................... 4 TUVALU POPULATION PYRAMIDS FROM CENSUS 2002 ............................................................................................. 4 NORTH EAST POPULATION PYRAMIDS FROM CENSUS 2002 .................................................................................... 4 CENTER POPULATION PYRAMIDS FROM CENSUS 2002 ............................................................................................. 5 CENTER AND SOUTH POPULATION PYRAMIDS FROM CENSUS 2002 ....................................................................... 5 RAINFALL ANALYSIS (SOURCE: DATA FROM TUVALU MET SERVICE, GRAPHS FROM OCHA) .... 6 RAINFALL ANALYSIS FOR NANUMEA (NORTH) ........................................................................................................... 6 RAINFALL ANALYSIS FOR NUI (CENTER NORTH) ....................................................................................................... 7 RAINFALL ANALYSIS FOR FUNAFUTI (CENTER) .......................................................................................................... 8 RAINFALL ANALYSIS FOR NIULAKITA (SOUTH) ........................................................................................................... 9 Tuvalu Map Figure 1 Map of Tuvalu. Source: Perry­Castenada Library 2
Population Overview of Tuvalu (Projections from Census 2002 & Government estimates 2011))
Island
Village
Tuvalu Grand Total
Nanumea Island Total
Hauma
Lolua
Haumaefa
Vao
Matagi
Nanumaga Island Total
Tokelau
Tonga
Niutao Island Total
Teava
Kulia
Nui Island Total
Manutalake
Alamoni
Maiaki
Meang
Vaitupu Island Total
Asau
Tumaseu
Potufale
Temotu
Apalolo/Saniuta
Matagi/Elisefou
Motufoua
Nukufetau Island Total
Maneapa
Aulotu
Funafuti Island Total
Lofeagai
Teone
Fakaifou
Senala
Alapi
Vaiaku
Tekavatoetoe
Funafara
Amatuku
Nukulaelae Island Total
Nukualofa
Pepesala
Niulakita Island Total
Niulakita
Pop. in 2002
9,561
664
181
215
124
107
37
589
281
308
663
439
224
548
140
176
105
127
1591
219
287
202
52
229
96
506
586
250
336
4492
399
540
1007
589
1024
516
343
22
52
393
188
205
35
35
Male [%]
Female [%]
Pop Growth Rate
[1991- 2002]
Proj. Population [2011]
(Govt est. [2011] / Fam)
10,001 (10,607 / 2,189)
555 (764 / 205)
49%
46%
51%
54%
0.5
-2
47%
53%
-0.8
548 (674 / 251)
47%
53%
-1.1
601 (759 / 169)
48%
52%
-0.9
505 (609 / 203)
50%
50%
2.5
1,992 (1,600 / 321)
49%
51%
-2.3
476 (568 / 130)
51%
49%
1.4
5,095 (5,300 / 789)
47%
53%
1
430 (333 / 121)
54%
46%
-6.9
19
Table 1 Island and village names with population figures
3
Demographic Analysis of Tuvalu Tuvalu population pyramids from Census 2002 North East population pyramids from Census 2002 4
Center population pyramids from Census 2002 Center and South population pyramids from Census 2002 5
Rainfall analysis (Source: data from Tuvalu MET Service, graphs from OCHA) Rainfall Analysis for Nanumea (North) Explanation: Drought models in small island environments typically measure the deviation of current rainfall from the long‐term average for that location. This is on the basis that local vegetation and water usage practices are well suited for the norm, but are heavily stressed in extreme situations. The red line (severe drought) in the top two graphs corresponds to the lowest 10% of all observations on record; rainfall figures below this line have occurred only very rarely in the last 50‐60 years. The two timeframes considered (12 month cumulative rainfall and 3 month cumulative rainfall) correspond conceptually to the residence times of rainwater in two distinct reservoirs (groundwater lenses and household rainwater harvesting tanks) and show the level of stress placed on these two water sources. The lower graph shows actual monthly rainfall (green bars) and monthly average rainfall for the last 50 years (green line). The black line with the dots shows the minimum rainfall required to provide 15l/pers/day of drinking water based on a hypothetical scenario of 5.5 persons per household and a 70m2 rain harvesting area. 6
Rainfall Analysis for Nui (Center North) Explanation (cont’d): Rainwater harvesting data from 2010 in Nukulaelae and Funafuti shows this to be a conservative estimate, and with recent rainwater harvesting investments, it is expected that real harvesting yield is higher. In this case, 35mm rain per month would, on average, provide minimum SPHERE standards (15l/pers/day) of fresh water for all. 7
Rainfall Analysis for Funafuti (Center) 8
Rainfall analysis for Niulakita (South) 9
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