Classification

scale

Data type

Data source

Collapse hazard

1:10,000

Point

Field Survey

Topological map

30 m

GRID

SRTM

Slope map

30 m

GRID

From SRTM

Aspect map

30 m

GRID

From SRTM

Water system map

line

From SRTM

Terrain relief

GRID

From SRTM

Fault map

1:50,000

line

from geological map

lithology

1:50,000

polygon

from geological map

Land use map

1:10,000

polygon

China 2nd National Land

and Resources Survey (2018)

Road map

1:50,000

Line

Gaode digital Map(2020)

Vegetation Index

30 m

GRID

From landsat NDVI (2020)