ADRIANO FANTINI
PhD student at the University of Trieste and ICTP, Trieste, Italy
afantini@ictp.it
http://bit.ly/2s80MjF
Gridded:
In-situ:
Advantages
Disadvantages
Basic categories:
CAN HAVE DIFFERENT RESULTS!
Mohr, 2008
Basic categories:
CAN HAVE DIFFERENT RESULTS!
Hofstra, 2008
Bostan, 2012
Advantages
Disadvantages
Temporal and spatial problems:
Data quality problems:
HISTALP database, Bohm et al., 2007
Hewaarachchi et al., 2016
Nespor and Sevruk, 1999
Macdonald and Pomeroy, 2008
WE OFTEN DO NOT HAVE ACCESS TO THIS, AND IT'S EXTREMELY TIME CONSUMING
REQUIRES HIGH ENOUGH STATION DENSITY
HARD TO DO ON HIGHLY SPATIALLY VARIABLE FIELDS (e.g. PRECIPITATION) OR REGIONS (e.g. MOUNTAINS)
Prein et al., 2017
JJA
DJF
The best approach to correct data is heavily dependent on:
RADAR
SATELLITE
Liu, 2014
They are just proxies!
Requirement to choose an algorithm
% DIFF
CORR
TRMM
Digital Elevation Models
Usually satellite based, sometimes LIDAR