Dry Tropical and Subtropical Forest and Woodland Monitoring (2000 to 2005)

Landsat Supplementary Data

Landsat ETM+ (28.5 m spatial resolution) data were sampled and classified to derive area estimates of forest cover and change within the biome. Stratified sampling was implemented to enhance precision by allocating greater sampling effort to areas likely to exhibit change. The strata were determined based on the MODIS-derived forest cover loss hotspot map. The biome was partitioned into a sampling frame consisting of square blocks 18.5 km per side. The 500m forest cover loss hotspot map for 2000-2005 was aggregated per block, yielding percent change for each of the blocks within the biome. The stratum boundaries were chosen guided by the cumulative square root frequency rule and the sample size allocated to each change stratum was initially determined by optimal allocation (Cochran, 1977).

Stratified sampling design.

Stratum

MODIS forest loss
hotspot fraction

Number of blocks
sampled

1

0%

65

2

0-1%

25

3

>1%

30

 

Each Landsat sample block was classified using a supervised decision tree classifier to yield 2000 forest cover and 2000 to 2005 forest clearing areas. Forest was defined as greater than 25% canopy cover and change was measured without regard to forest land use. Sample block imagery and classification results can be viewed from this page.

 

 

Africa

 
 

  Angola, Malanje

 8.4° S   

16.4° E

   Stratum 1

 
 

  Botswana, Central

 21.8° S   

27.9° E

   Stratum 3

 
 

  Botswana, Chobe

 18.3° S   

24.0° E

   Stratum 2

 
 

  Burkina Faso, Comoe

 10.6° N   

5.2° W

   Stratum 1

 
 

  Burundi, Cankuzo

 3.3° S   

30.5° E

   Stratum 1

 
 

  Cameroon, Est

 5.1° N   

14.0° E

   Stratum 1

 
 

  Cameroon, Nord

 7.8° N   

15.6° E

   Stratum 1

 
 

  Central African Republic, Kemo-Gribingui

 5.4° N   

19.5° E

   Stratum 1

 
 

  Chad, Ouaddai

 13.6° N   

21.2° E

   Stratum 1

 
 

  Chad, Ouaddai

 11.9° N   

21.9° E

   Stratum 1

 
 

  Congo, Kouilou

 4.3° S   

11.6° E

   Stratum 1

 
 

  Democratic Republic of the Congo, Kivu

 4.8° S   

28.2° E

   Stratum 1

 
 

  Democratic Republic of the Congo, Shaba

 7.6° S   

24.1° E

   Stratum 1

 
 

  Ethiopia, Bale

 5.8° N   

43.3° E

   Stratum 1

 
 

  Ethiopia, Ilubabor

 7.1° N   

34.3° E

   Stratum 1

 
 

  Ethiopia, Kefa

 6.6° N   

35.0° E

   Stratum 1

 
 

  Ethiopia, Welega

 9.1° N   

35.9° E

   Stratum 1

 
 

  Kenya, Western

 0.8° N   

35.1° E

   Stratum 1

 
 

  Madagascar, Mahajanga

 19.3° S   

44.6° E

   Stratum 1

 
 

  Mali, Gao

 16.6° N   

2.3° W

   Stratum 1

 
 

  Mali, Gao

 15.3° N   

0.3° W

   Stratum 1

 
 

  Mozambique, Gaza

 23.6° S   

32.3° E

   Stratum 3

 
 

  Mozambique, Gaza

 21.9° S   

32.2° E

   Stratum 3

 
 

  Mozambique, Gaza

 21.6° S   

32.5° E

   Stratum 3

 
 

  Mozambique, Inhambane

 22.1° S   

34.4° E

   Stratum 3

 
 

  Mozambique, Manica

 20.9° S   

33.1° E

   Stratum 2

 
 

  Mozambique, Sofala

 19.1° S   

34.7° E

   Stratum 1

 
 

  Mozambique, Zambezia

 16.9° S   

37.0° E

   Stratum 3

 
 

  Namibia, Hereroland Wes

 20.1° S   

18.2° E

   Stratum 1

 
 

  Namibia, Outjo

 19.1° S   

15.4° E

   Stratum 1

 
 

  Namibia, Owambo

 18.6° S   

17.8° E

   Stratum 1

 
 

  Niger, Agadez

 15.9° N   

8.1° E

   Stratum 1

 
 

  Nigeria, Borno

 12.6° N   

12.6° E

   Stratum 1

 
 

  Senegal, Tambacounda

 14.3° N   

12.8° W

   Stratum 1

 
 

  Somalia, Bari

 10.4° N   

50.1° E

   Stratum 1

 
 

  Somalia, Bay

 2.6° N   

43.3° E

   Stratum 1

 
 

  Somalia, Jubbada Dhexe

 2.3° N   

41.4° E

   Stratum 1

 
 

  Sudan, Al Istiwa'Iyah

 5.9° N   

28.4° E

   Stratum 1

 
 

  Sudan, Al Wusta

 12.3° N   

35.4° E

   Stratum 1

 
 

  Sudan, Ash Sharqiyah

 14.3° N   

36.0° E

   Stratum 1

 
 

  Sudan, Bahr Al Ghazal

 8.6° N   

26.0° E

   Stratum 1

 
 

  Sudan, Bahr Al Ghazal

 6.3° N   

31.3° E

   Stratum 2

 
 

  Sudan, Darfur

 12.3° N   

26.7° E

   Stratum 1

 
 

  Sudan, Darfur

 11.8° N   

23.7° E

   Stratum 1

 
 

  Sudan, Kurdufan

 11.9° N   

27.9° E

   Stratum 1

 
 

  Tanzania, Lindi

 8.6° S   

37.5° E

   Stratum 2

 
 

  Tanzania, Lindi

 10.6° S   

38.1° E

   Stratum 2

 
 

  Tanzania, Mbeya

 7.8° S   

32.5° E

   Stratum 1

 
 

  Zambia, Central

 15.3° S   

25.5° E

   Stratum 3

 
 

  Zambia, Eastern

 14.4° S   

30.7° E

   Stratum 3

 
 

  Zambia, Northern

 8.8° S   

30.1° E

   Stratum 2

 
 

  Zambia, North-Western

 13.8° S   

24.6° E

   Stratum 1

 
 

  Zambia, Southern

 15.4° S   

26.5° E

   Stratum 2

 
 

  Zambia, Southern

 15.4° S   

26.7° E

   Stratum 3

 
 

  Zambia, Southern

 17.8° S   

26.9° E

   Stratum 3

 
 

  Zimbabwe, Mashonaland West

 17.4° S   

29.6° E

   Stratum 2

 
 

  Zimbabwe, Masvingo

 20.1° S   

32.2° E

   Stratum 3

 
 

  Zimbabwe, Matabeleland North

 19.4° S   

28.4° E

   Stratum 1

 
 

  Zimbabwe, Matabeleland South

 22.1° S   

30.8° E

   Stratum 3

 
 

  Zimbabwe, Matabeleland South

 21.1° S   

28.8° E

   Stratum 3

 

Asia

 
 

  India, Maharashtra

 20.1° N   

79.9° E

   Stratum 1

 
 

  India, Maharashtra

 18.8° N   

77.2° E

   Stratum 1

 
 

  India, Orissa

 19.6° N   

82.5° E

   Stratum 1

 
 

  Sri Lanka, Eastern

 7.1° N   

81.5° E

   Stratum 1

 

Australian Area

 
 

  Australia, Northern Territory

 14.1° S   

135.0° E

   Stratum 1

 
 

  Australia, Northern Territory

 13.1° S   

131.2° E

   Stratum 2

 
 

  Australia, Queensland

 13.4° S   

142.1° E

   Stratum 1

 
 

  Australia, Queensland

 20.9° S   

145.3° E

   Stratum 2

 
 

  Australia, Queensland

 20.6° S   

145.5° E

   Stratum 2

 
 

  Australia, Western Australia

 15.3° S   

126.0° E

   Stratum 1

 
 

  Australia, Western Australia

 14.6° S   

126.3° E

   Stratum 1

 

North America

 
 

  Mexico, Chihuahua

 28.9° N   

107.7° W

   Stratum 1

 
 

  Mexico, Michoacan

 18.9° N   

101.6° W

   Stratum 1

 

South America

 
 

  Argentina, La Pampa

 36.9° S   

65.4° W

   Stratum 3

 
 

  Argentina, La Pampa

 39.3° S   

63.6° W

   Stratum 3

 
 

  Argentina, Salta

 22.8° S   

63.5° W

   Stratum 3

 
 

  Argentina, Salta

 24.6° S   

63.9° W

   Stratum 3

 
 

  Argentina, Salta

 25.6° S   

64.8° W

   Stratum 3

 
 

  Argentina, Santa Fe

 29.9° S   

60.9° W

   Stratum 1

 
 

  Argentina, Santiago Del Estero

 27.9° S   

64.2° W

   Stratum 2

 
 

  Argentina, Santiago Del Estero

 28.4° S   

62.3° W

   Stratum 3

 
 

  Argentina, Santiago Del Estero

 26.8° S   

63° W

   Stratum 3

 
 

  Argentina, Santiago Del Estero

 26.3° S   

63.3° W

   Stratum 3

 
 

  Argentina, Santiago Del Estero

 29.4° S   

63.2° W

   Stratum 3

 
 

  Bolivia, Santa Cruz

 18.8° S   

61.9° W

   Stratum 1

 
 

  Bolivia, Santa Cruz

 18.4° S   

60.9° W

   Stratum 1

 
 

  Brazil, Bahia

 14.1° S   

42.4° W

   Stratum 1

 
 

  Brazil, Bahia

 12.9° S   

41° W

   Stratum 2

 
 

  Brazil, Bahia

 13.1° S   

42° W

   Stratum 2

 
 

  Brazil, Ceara

 6.1° S   

39.6° W

   Stratum 2

 
 

  Brazil, Goias

 17.4° S   

51.6° W

   Stratum 1

 
 

  Brazil, Goias

 13.6° S   

46.6° W

   Stratum 2

 
 

  Brazil, Maranhao

 6.3° S   

43.5° W

   Stratum 1

 
 

  Brazil, Maranhao

 7.9° S   

46° W

   Stratum 2

 
 

  Brazil, Mato Grosso

 14.6° S   

53.1° W

   Stratum 1

 
 

  Brazil, Mato Grosso

 13.8° S   

54.3° W

   Stratum 2

 
 

  Brazil, Mato Grosso

 14.8° S   

53.2° W

   Stratum 2

 
 

  Brazil, Mato Grosso

 12.8° S   

58.7° W

   Stratum 2

 
 

  Brazil, Mato Grosso

 14.1° S   

53° W

   Stratum 2

 
 

  Brazil, Mato Grosso

 17.1° S   

54° W

   Stratum 3

 
 

  Brazil, Mato Grosso

 13.6° S   

54.8° W

   Stratum 3

 
 

  Brazil, Mato Grosso

 13.6° S   

51.7° W

   Stratum 3

 
 

  Brazil, Mato Grosso

 13.6° S   

55° W

   Stratum 3

 
 

  Brazil, Mato Grosso

 16.1° S   

53.5° W

   Stratum 3

 
 

  Brazil, Mato Grosso Do Sul

 17.9° S   

55.6° W

   Stratum 3

 
 

  Brazil, Minas Gerais

 16.3° S   

47.3° W

   Stratum 1

 
 

  Brazil, Minas Gerais

 15.6° S   

45.2° W

   Stratum 1

 
 

  Brazil, Minas Gerais

 21.8° S   

46° W

   Stratum 1

 
 

  Brazil, Paraiba

 7.6° S   

38.3° W

   Stratum 1

 
 

  Brazil, Piaui

 7.9° S   

42.8° W

   Stratum 2

 
 

  Brazil, Piaui

 7.4° S   

44.5° W

   Stratum 2

 
 

  Brazil, Piaui

 8.3° S   

44.2° W

   Stratum 2

 
 

  Brazil, Piaui

 8.6° S   

45.3° W

   Stratum 3

 
 

  Brazil, Rio Grande Do Sul

 32.3° S   

52.5° W

   Stratum 1

 
 

  Brazil, Sao Paulo

 22.8° S   

48.2° W

   Stratum 1

 
 

  Brazil, Sao Paulo

 22.8° S   

49.1° W

   Stratum 2

 
 

  Colombia, Vichada

 5.1° N   

69.7° W

   Stratum 1

 
 

  Paraguay, Boqueron

 22.8° S   

61.4° W

   Stratum 3

 
 

  Paraguay, Presidente Hayes

 22.3° S   

59.2° W

   Stratum 1

 
 

  Uruguay, Durazno

 32.8° S   

55.4° W

   Stratum 1