��GIS��RS��m��NO2�r�շֲ��о�

��r�g��2008-08-01 18:00 ��Դ��h(hu��n)��Ⱦ�c��Ρ� ��: ��x��1167

ժҪ����NO₂��{(l��n)�Ⲩ�δ��շ�ȽY(ji��)��(g��u)�@һ��,��ûؚw��ķ��,��ERDAS��g��ģ��ܣ��m��NO₂�Ŀ��g�ֲ�,��Y(ji��)��,��NO₂��cLANDSAT�l(w��i)��{(l��n)�Ⲩ��Ԫ�Ҷ�ֵ��DN��ؓ(f��)��P(gu��n)�P(gu��n)ϵ��m��̅^(q��),��^(q��)�ͳ��P(gu��n)�^(q��)�㞩�l(xi��ng)NO₂��Ⱦ��(y��n)��,��P(gu��n)�^(q��)��؅^(q��)��Ӆ^(q��)��Ⱦ�^�p��@һģ�Ϳ��ڱO(ji��n)�y�m��е�NO₂�r��׃��,��

�P(gu��n)�I�~��GIS RS NO₂ �m�� r�շֲ�

NO₂�ڴ��һ�N΢��w,��h(hu��n)��s��ǳ��Ҫ��Ӱ푡��cƽ��г��Ĺ⻯�W(xu��)��(y��ng),��ƽ��ӵĳ��,��ڌ��У��cOH��ɻ��,��M(j��n)�˴��⻯�W(xu��)��F�Įa(ch��n)��,��cSO₂�Ț��w��γ��,��Σ����,��H�ϴ��ͭh(hu��n)��ƌW(xu��)��؄e�P(gu��n)עNO₂��׃��,��h(hu��n)��O(ji��n)�yվ�Ŀ՚��|(zh��)��u�r��(sh��)��(j��)�У�NO_x��Ҫ��NO₂��һ��ָ��(bi��o)^[1],��

�\(y��n)��l(w��i)��RS�M(j��n)��Ⱦ��ıO(ji��n)�y,��о��Ҫ��l(w��i)��M(j��n)��x��,��ڌ��z��о��,��H�͇��(n��i)�Ķ��(sh��)�о��߲��õ��NASA�l(f��)��Terra�l(w��i)�ǳ��d��MODIS��,��ԓ��36��ͨ��,��w��⡢��Ҋ,��t��,��t��ͨ��鷴�ݚ��z�͵ر��ṩ��S��Ϣ^[2-7],��R��۵�[8]�\(y��n)��GIS��L��NO_x�r��׃��M(j��n)��о�,��ɹ��L��NO_x�ıO(ji��n)�yϵ�y(t��ng)��@�t��^[9]��ͷ��ؑc��ǅ^(q��)��SO₂�ķֲ�,��GIS��̩�ն�߅�η��ͅ^(q��)��ֵ��O(ji��n)�y��(sh��)��(j��)�M(j��n)�з��̎��,��c(di��n)��棬ʹ��Ⱦ��ķֲ��,��ľ��[10]��GIS��Ҫ�ؾC�Ϸ��ʽ,��Ϻ��ĳǅ^(q��)��w��Ⱦ��r�ĄӑB(t��i)�O(ji��n)�yϵ�y(t��ng)��

��H�ό��Ⱦ�(sh��)��(j��)�c�l(w��i)�ǔ�(sh��)��(j��)�g��P(gu��n)��о��^��,��ANTHONY��^[11]�ڌ�˹��˹��l(w��i)�ǔ�(sh��)��(j��)��Ⱦ��P(gu��n)��о��б��,��SO2��в��ε��l(w��i)�ǔ�(sh��)��(j��)�g��P(gu��n)�Ա��^΢��NO₂,��NO,��PM10��Ⱦ���ؓ(f��)��P(gu��n),��

��˸��õĶ��NO₂��NO_x��Ⱦ,��ƶ��Ĵ�ʩ��회��m��е�NO₂�r��׃��J(r��n)�R,��NO₂��450 nm̎��@�ķ�ȽY(ji��)��(g��u),��450 nm��LANDSAT�l(w��i)�ǵ��{(l��n)�Ⲩ�Σ��˱��l(w��i)��{(l��n)�Ⲩ�Δ�(sh��)��(j��)�c��^�yֵ�M(j��n)�лؚw,��(j��ng)�^��g��ģ,��m��е�NO₂��ȿ��g�ֲ��M(j��n)��˷��,��c��Ĳ�֮ͬ̎��ڲ��õķֱ��ʞ�30 m��LANDSAT�l(w��i)��Ӱ��cMODISӰ��,��TMӰ��ķֱ��ʸ�,��п��^�ԡ��ڇ��(n��i)��W(xu��)�ߌ��о��Ú��l(w��i)��MODIS,��(y��ng)��LANDSATꑵ��YԴ�l(w��i)��M(j��n)�д�ⷽ��о��^��,��Ա��Ĳ��^�ٵ�LANDSAT�l(w��i)��Ӱ��ͬ�rҲ�ǌ��(y��ng)��GIS��RS��g(sh��)��Ⱦ�M(j��n)��Ӵ��ϵıO(ji��n)�y�ͽ��(y��ng)��ϵ�y(t��ng)�M(j��n)��̽ӑ,��Ⱦ��κ��ṩһ��ƽ�_,��

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ�ġ��Ё�Դ��(bi��o)ע�e�`��ַ��ĺϷ��(qu��n)��,��Ո��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ,��҂��r��h��,��x�x,��