Evapotranspiration in the Congo River Basin

Noel AloysiusYale School of Forestry and Environmental Studies

June 07, 2013

Trenberth, K. E., J. T. Fasullo, et al. (2009). "Earth's Global Energy Budget." Bulletin of the American Meteorological Society 90(3): 311-323.

N

Equator

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9

87

6

5

4

3

2

1

19

18

17

16

15

14

13

12

11

10

Congo, DRC

Angola

Sudan

Zambia

Congo

Tanzania

Cameroon

Uganda

Chad

Central African Republic

Gabon

Malawi

Nigeria

Ethiopia

Burundi

Mozambique

Rwanda

Kenya

Kenya

Mozambique

Equatorial Guinea

Tanganyika

Mweru

Kivu

Chishi

Bangweulu

Mai-Ndombe

Tumba

Upemba

Nzilo

Pool Malebo

KisaleZimbambo

Retenue de la Lufira

KabweKabele

Kampolombo

Kifukula

34° E

34° E

32° E

32° E

30° E

30° E

28° E

28° E

26° E

26° E

24° E

24° E

22° E

22° E

20° E

20° E

18° E

18° E

16° E

16° E

14° E

14° E

12° E

12° E

10° N 10° N

8° N 8° N

6° N 6° N

4° N 4° N

2° N 2° N

0° 0°

2° S 2° S

4° S 4° S

6° S 6° S

8° S 8° S

10° S 10° S

12° S 12° S

14° S 14° S

Rainfed agriculture areas (9 classes) developed by IWMI (Birdar et al., 2009)Purple boxes are cities

Rainfed areas are mostly concentrated in the South

!( Calibration gages! Streamflow gages

river_network

Basin boundary

congo_geog

Lakes

01 Rainfed croplands: wheat-corn-cotton-rice-millets-barley-pulses

02 Rainfed croplands with pastures: wheat-corn-cotton-rice-barley-small grains

03 Rainfed croplands with grasslands: wheat-cotton-corn-small grains-tuber crops

04 Rainfed croplands with shrublands: wheat-corn-pulses, millets

05 Rainfed croplands with woodlands: wheat-corn-pulses-oilseeds

06 Grassland dominant with rainfed croplands

07 Shrubland dominant with rainfed croplands

08 Woodland dominant with rainfed croplands

09 Forest dominant with rainfed croplands

SWAT Water Balance(1971-2000)

SWAT Water Balance(1971-2000)

(a)

(values are in mm/year)

Seasonal ET variation Seasonal Precipitation variation

TWL – Tropical forests + Wetlands + Lakes, RaF – Rainfed agriculture areas, Oth – All regions excluding TWL

Trenberth, K. E., J. T. Fasullo, et al. (2009). "Earth's Global Energy Budget." Bulletin of the American Meteorological Society 90(3): 311-323.