Concept: Different hazards use different data sources for monitoring, prediction, and mapping. Matching hazard types with correct data sources is important in disaster information management.
Step 1: Match fire.
Fire hazards are matched with fire atlas data sources. Therefore, fire is linked with IONA fire atlas.
\[
A \rightarrow III
\]
Step 2: Match landslide.
Landslide and geohazard studies are linked with the International Centre for Geohazards.
\[
B \rightarrow I
\]
Step 3: Match earthquake.
USGS is widely known for earthquake monitoring and seismic data.
\[
C \rightarrow II
\]
Step 4: Match drought.
Drought is climate-related, so it is linked with climate prediction institutions like IRI.
\[
D \rightarrow IV
\]
Therefore, the correct matching is:
\[
A-III,\ B-I,\ C-II,\ D-IV
\]