IDENTIFYING ACTIVE FIRE IN SOUTHWESTERN NIGERIA WITH MODIS DATA AND GEOGRAPHICAL INFORMATION SYSTEMS

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New Methods of Active Fire Detection Using MODIS Data

Active fire detection using satellite thermal sensors usually involves thresholding the detected brightness temperature in several bands. The frequently used features for fire detection are the brightness temperature in the 4-micron wavelength band (T4) and the brightness temperature difference between the 4-micron and 11-micron bands (dT=T4-T11). The thresholds used are determined empirically ...

متن کامل

Validation of the MODIS active fire product over Southern Africa with ASTER data

This paper describes the use of high-spatial-resolution ASTER data to determine the accuracy of the moderate-resolution MODIS active fire product. Our main objective was to develop a methodology to use ASTER data for quantitative evaluation of the MODIS active fire product and to apply it to fires in southern Africa during the 2001 burning season. We utilize 18 ASTER scenes distributed througho...

متن کامل

Geographical Domain and Geographical Information Systems

In the eld of geography, we have beenexamining the contribution of the morpho-genetic rep-resentation to the comprehension of the cycle: reality,representation, model, reality. A distinction is madebetween map and geomap based on the notion of locus-object. 1. Foundations and limits of cartographic rep-

متن کامل

Global estimation of burned area using MODIS active fire observations

We present a method for estimating monthly burned area globally at 1 spatial resolution using Terra MODIS data and ancillary vegetation cover information. Using regression trees constructed for 14 different global regions, MODIS active fire observations were calibrated to burned area estimates derived from 500-m MODIS imagery based on the assumption that burned area is proportional to counts of...

متن کامل

Priapism in southwestern Nigeria.

OBJECTIVES To determine the aetiology, pattern of presentation, treatment regimen and outcome of management of priapism in our environment and to compare our findings with previous studies in this country and elsewhere. DESIGN A 10-year retrospective study from January 1991 to December 2000. SETTING Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria. PATIENTS AND METHO...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Geodesy and Cartography

سال: 2015

ISSN: 2029-6991,2029-7009

DOI: 10.3846/20296991.2015.1056502