000 03131nam a2200385 a 4500
005 20260817162434.0
008 190401s2015 uu m rtt 000 a|eng d
035 _a.b1230251x
099 _aAIT Thesis no.RS-15-10
100 0 _aNatnaphat Subtaweepollert
245 1 0 _aAnalysis of Standardized Precipitation Index with Remote Sensing Derived Drought Indices : A Case Study of South Lam Ham Pong Sub Watershed
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2015
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Remote Sensing and Geographic Information Systems
502 _aThesis (M. Sc.) - Asian Institute of Technology, 2015
520 _aDrought is a natural hazard that is complicated occurrence and difficult to prevent. The present study has a main objective to identify the appropriate remotely sensed drought index to assess the drought severity in non-station based areas. Thus, the Temperature Vegetation Index (TVX), Vegetation Health Index (VHI) and Modified Perpendicular Drought Index (MPDI) are used to calculate the dryness levels of South Lam Nam Pong sub-watershed. These dryness values are compared with the Standardized Precipitation Index (SPI) values to classify the drought categories. The TVX, VHI and MPDI values are classified as a moderately drought when it is more than 50.572, less than 55.746 and less than 1.178, respectively. In addition, the time lag concept is considered to investigate the drought evolution by comparing the SPI one month time scale values with TVX, VHI and MPDI values. The results indicate that a trend line of TVX, VHI, MPDI have a best fit with a trend line of SPI one month time scale at five and seven month time lag. In conclusion, TVX is the best index to assess drought event in forest areas because it can be operated in a shorter time period than VHI and MPDI, and it show the highest correlation when compare with SPI values.
650 0 _aDrought forecasting
_xRemote sensing
650 0 _aRemote sensing
650 0 _aGeographic information systems
700 0 _aSarawut Ninsawat,
_eChairperson
700 1 _aTripathi, Nitin Kumar,
_eExamination Committee
700 1 _aShrestha, Sangam,
_eExamination Committee
710 2 _aThailand (HM King),
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. RS-15-10
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B03914
907 _a.b1230251x
_bmnait
_cy
902 _a240422
998 _b0
_c190401
_dm
_eb
_fy
_g0
945 _lmnarc
945 _lmnarc
942 _c40
942 _c61
909 _aBarcode : 30050120881536
_bCREATED : 2019-01-04
_cRECORD # : i13168605
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : -
_bCREATED : 2019-01-04
_cRECORD # : i13168617
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c5024
_d5024