13°0′0′′N

12°30 ′0′′N

12°0′0′′N

11°30 ′0′′N

6°30′0′′E 7°0′0′′E 7°30′0′′E 8°0′0′′E 8°30′0′′E 9°0′0′′E 9°30′0′′E

Niger Republic

W

N

S

E

International boundary

State boundary

Major rivers

State HQ Gully areas

Jigawa

State

Kano State

Nigeria

Zamfara State

13°0′0′′N

12°30 ′0′′N

12°0′0′′N

11°30 ′0′′N

6°30′0′′E 7°0′0′′E 7°30′0′′E 8°0′0′′E 8°30′0′′E 9°0′0′′E 9°30′0′′E

30 15 0 30 km

North Grid 113.00 113.31 113.63 113.94 114.25 114.56 114.88 115.19 115.50 115.81 116.13 116.44 116.75

117.06 117.38 117.69 118.00

NDVI values (a)

North Grid

320 m

484.46

480.36

479.75

478.53

477.62 477.31

487.67

482.19

488.28

482.49

North Grid

km 0.01

467.00468.50470.00471.50473.00474.50476.00477.50479.00480.50482.00483.50485.00486.50488.00489.50491.00

Metres

0.05

420 426 431 437 443 448 454 459 465 471 476 482 488 493 499 504 510

Metres (a)

(b)

North Grid

113.00 113.44 113.88 114.31 114.75 115.19 115.63 116.06 116.50 116.94 117.38 117.81 118.25 118.69 119.13 119.56 120.00

NDVI values (a)

0.01

North Grid

220 m 0.09

417 425 432 440 447 455 462 470 477 485 492 500 507 515 522 530 537

Metres

509.01

495.29 491.03

488.89 484.02

481.88

North Grid

km

504.00 504.69 505.38 506.06 506.75 507.44 508.13 508 .81 509.50 510.19 510.88 511.56 512.25 512.94 513.63 514.31 515.00

Metres

(a)

(b)

North Grid

112.00 112.38 112.75 113.13 113.50 113.88 114.25 114.63 115.00 115.38 115.75 116.13 116.50 116.88 117.25 117.63 118.00

NDVI values (a)

North Grid

320 m 0.05

565.00 566.13 567.25 568.38 569.50 570.63 571.75 572.88 574.00 575.13 576.25 577.38 578.50 579.63 580.75 581.88 583.00

Metres

494.69 474.57

471.83

491.72 491.03

479.01 489.11

483.41 482.19

km 0.00

457.00 457.13 457.25 457.38 457.50 457.63 457.75 457.88 458.00 458.13 458.25 458.38 458.50 458.63 458.75 458.88 459.00

Metres

(a)

(b)

North Grid

110.00 110.44 110.88 111.31 111.75 112.19 112.63 113.06 113.50 113.94 114.38 114.81 115.25 115.69 116.13 116.56 117.00

NDVI values (a)

North Grid

320 m 0.04

425 430 435 439 444 449 454 458 463 468 473 477 482 487 492 496 501

Metres

449.66 447.04

445.03 445.09 446.53

445.31

444.09

North Grid

220 m 0.01

436.00 436.88 437.75 438.63 439.50 440.38 441.25 442.13 443.00 443.88 444.75 445.63 446.50 447.38 448.25 449.13 450.00

Metres

(a)

(b)

North Grid 114.00 115.06 116.13 117.19 118.25 119.31 120.38 121.44 122.50 123.56 124.63 125.69 126.75 127.81 128.88 129.94 131.00

NDVI values (a)

North Grid

670.00 677.25 684.50 691.75 699.00 706.25 713.50 720.75 728.00 735.25 742.50 749.75 757.00 764.25 771.50 778.75 786.00

Metres

(b)

(a)

North Grid

320 m 0.04

425 430 435 439 444 449 454 458 463 468 473 477 482 487 492 496 501

Metres

449.66 447.04

445.03 445.09 446.53

445.31

444.09

North Grid

220 m 0.01

436.00 436.88 437.75 438.63 439.50 440.38 441.25 442.13 443.00 443.88 444.75 445.63 446.50 447.38 448.25 449.13 450.00

Metres

(a)

(b)

North Grid 114.00 115.06 116.13 117.19 118.25 119.31 120.38 121.44 122.50 123.56 124.63 125.69 126.75 127.81 128.88 129.94 131.00

NDVI values (a)

North Grid

670.00 677.25 684.50 691.75 699.00 706.25 713.50 720.75 728.00 735.25 742.50 749.75 757.00 764.25 771.50 778.75 786.00

Metres

(b)

(a)

North Grid

113.00 113.81 114.63 115.44 116.25 117.06 117.88 118.69 119.50 120.31 121.13 121.94 122.75 123.56 124.38 125.19 126.00

NDVI values (a)

NorthGrid

320 m 0.06

656.00663.44 670.88 678.31 685.75693.19 700.63 708.06 715.50 722.94 730.38 737.81745.25 752.69 760.13767.56 775.00

Metres

620.87624.23 616.61 616.00

615.69

613.25609.90 608.38

606.24 North Grid

km 0.01

606.00 606.25 606.50 606.75 607.00 607.25 607.50 607.75 608.00 608.25 608.50 608.75 609.00 609.25 609.50 609.75 610.00

Metres

(a)

(b)

(b)

(

(a)

(c) (d)