id	keyword
american_scientific_journal-2846	srtm
american_scientific_journal-2846	gps
american_scientific_journal-2846	cgiar
american_scientific_journal-2846	tanzania
american_scientific_journal-2846	gdem
american_scientific_journal-2846	controls
american_scientific_journal-2846	csiv4.1′′
american_scientific_journal-2846	land
american_scientific_journal-2846	assessment
american_scientific_journal-2846	public