���������غ㷽���ָ�����������ģ��

????????????????????????????????????????????????????λ?????????????????÷?????????κ?δ????????????????????У?????????????????????????????GRACE????102??????????89????????????SWJTU??GRACE01??????EGM96??EIGEN2??EIGEN??CHAMP03S??GGM02S??EIGEN??CG01C???????????????????? SWJTU??GRACE01???????????????ε?EGM96??EIGEN2??EIGEN??CHAMP03S??????λ???????GGM02S???н?????????     

���������CHAMP�������ָ��е�Ӧ��

??????????CHAMP?????????????????????????????н?????1???????????С?????LS??????????CHAMP?????????????????????????????????????????????????????????????????????????????????????CHAMP??????????У???????????????????????????1?GFZ????????????1???? CHAMP????RSO????????????????????????20???????(5??100) m ²s ^-2??С??????????????LS????????????60??60???????????????????EIGEN??CG03C??EIGEN2???????б?????????????????????Ч?????????????????CHAMP????????????????????LS???????????????ε?EGM96??EIGEN1S??EIGEN2????     

���޵���EGNOS�춥�������ӳ�ģ�͵ľ�������

???????????48??IGS?2009-2011??????????????????ZTD?????????????EGNOS???????ZTD???????????????????????1??????????????????IGS?????ZTD??EGNOS???????ZTD???????????????-0.18 cm??5.98 cm?????й?????????0.81 cm??6.13 cm??2????????????????????????仯????????????????＾??С??????????????????????С??3????????????????γ?????仯???????????????????????????γ????????????????????????????????γ????????????????????仯????С??4:???????????γ?????????????????????????????????仯?????     

����SLR��³ľ��վ�۲⾫������

????????SLR??2005??????3????????LAGEOS-1??BeaconC??Jason1????????ι?????????LAGEOS??1??????о?????????????????????????????????????????????????????ó?????SLR??3??????????????????2 cm??     

����UofCģ�͵ľ��ܵ��㶨λ���ȷ���

???????UofC??????????λ?????????????????????????????????UofC??????????λ???????t??????????????￡????????????????????к???????????壩???????????н?????鲢????????????????λ?????????????????????????????????????λ??????2??3 cm?????????????10??20 cm??     

����GOCE�������ݵ�������ģ�ͱȽ��о�

???????????????????????????????λ???????????????????????????????GOCE????????????????????????????з?????????????1)GO_CONS_GCF_2_TIM_R3??GO_CONS_GCF_2_DIR_R2??GO_CONS_GCF_2_SPW_R2??GOCE??only?????150~180?????????????ITG??GRACE2010S??GRACE??only???????????????????2)?????????????????????????????????????????????3)????GOCE????????????????????????????250??Σ???250?????????????澫????14.7 cm??     

���й�����ERA-Interim���ϼ���ZTD��ZWD�ľ��ȷ���

??????г??????????????ECMWF??????ERA??Interim???????й????????????????????????????????????ERA??Interim????????????????????ZTD?????????ZWD??????????????????28??GPS???????????ZTD??ZWD???б?????????ECMWF???????ZTD??????????????????????-1 cm??2 cm??ZWD??BJFS??LHAS?????????????????????1 cm??1.6 cm??     

�ٰ�2004��Ms6.7��2005��Ms6.5�����InSAR�۲⼰�α����

???????Envisat??????????????2004??7??12???2005??4??8?????????Ms6.7??Ms6.5?????InSAR????α??????????????ε????????????20 km??20 km??Χ???EW?????????Σ??????η???19.0 cm??30.5 cm???????????????????????????ε???????????????????????,????λ??83.71??E,30.70??N,??Mw6.1,83.72??,E30.52??N????Mw6.2??????????????? 1 m??1.4 m?????ε??????????NW?????3?????????????NS?????????-????????????λ     

EIGEN-6c2������ģ�����й���½�ľ��ȷ���

????????λ???????????????????????й???????????GPS/??????????EIGEN-6c2??EGM08?????????????????EIGEN-6c2?????????????EGM08????????2~3 cm??????????????????????????18 cm?????????1985?????????????????(W ₀???????26 cm??     

GPS����RTK����վ�ĵ��������������

?????????????????????????????????????????????????????????????б?????????????LIM???????Ч?????????????С??100 km?????徫??????3 cm??     

JASON-2������λ���ı仯���Ƽ�1 cm���ܹ��ȷ��

????JASON\|2????1 a?????????GPS?????????????????????в?????JASON\|2???????????λ????仯??PCV????????????????????????????????????JASON\|2??PCV?????в???????????????????PCV???JASON\|2??1 a?????????????????в????????????ζ???????JPL?????????????????????????????????????,????PCV???????JASON\|2????????????????????????????????3D RMS???2.5 cm??????RMS?1.0 cm????????     

GPS Block IIF����Ƶ���Ӳ�ƫ�����

???37??IGS???????????????4?????Block IIF?????PRN01??PRN24??PRN25??PRN27????IFCB???????????????????????????????GPS Blcok IIF???????????????IFCB??????cm??dm???????????????????????????????Ч??12??6??8??4 h?????????????????????IFCB??仯????????cm???????е?IFCB?????????????????????е?Block IIF?????     

ALOS PALSAR�״�Ӱ��InSAR���ݴ����еĻ��ߺ͵���������

?????????????InSAR?????е????????????????????ζ??α??????????????????????????????????????о?????????????????ALOS PALSAR???????????????????α????????????????????????ALOS PALSAR?????????3??5 m???????е???????????￡??α?????????????????????о?????????????????С?????????????????????DEM?????????￡?SRTM DEM????????ALOS PALSAR??????????1cm???α???????????????????С??400 m??     

��ͬģ���º������ɶԸ߾���GPS������Ӱ��

???й?????????IGS????,??????FES2004????????NAO99b?????????????????????????????????λ?????????????????????????????????λ????????cm??????????????U????????????????????????3~4????????????????????????????????mm????????????????????????С????????????????GPS????????????????10^-8??????????????????????????????????С??mm?????????????????????????????1 cm??     

������CORSվ�춥�������ӳ������ڱ仯�о�

??????????9??GPS????????????????????4??IGS?ο??????????????????????????GPS??????????????????????????仯????????λ???GPS????????????????????????????以????????4 mm??????????????1 cm??2006???2007?????????9 mm???????????4 cm??     

�����鳱վ��������ȫ�򺣳�ģ�͵ľ���

???????鳱??????5???????????NAO99b??FES2004??GOT4.7??TPXO7.2??EOT10a???о????????????????????????????????????????????????????????????????????????????2 cm??????????50 km?????й?????NAO99b?????????RSS?14.86cm??EOT10a???????Χ??????????????????????????????     

����̶ˮ����ˮ�Գ�����׼վ���������仯��Ӱ��

??FG5??112?????????????й?????????????硱????????? ??JZ06????????4?ξ?????????????????????????????????????????????????????????????????????1??2001??2008??3?ι?????????????????20??10^-8ms^-2???????????????????????????????????????????15.4??10^-8ms^-2??????6.7??10^-8??ms^-2????2?????????仯??????????????????????????????????仯?????0.61??10^-8ms????^-2??/a???????????λ???????-0.18cm/a??????????????????仯??????????????????????????????????????????????????????     

�����������ǹ۲����Ͻ����й���½ˮ�����仯

????GRACE????????2002??4??~2004??7?1???20???μ??????????????????????й???????????????????仯???????y????????????????????CPC??????????????????????????????:GRACE????????????????????????????????:???????????????????????????????仯??????12??14 cm????????????С??????????????????????????仯??????????8 cm???????????????????????????仯??С?????????????????????GRACE???????????????????     

���϶�׾��״�����볣��ϳɿ׾��״������ȡ��ά�α䳡

??????????????????????????(MAI)????InSAR???????????????(?????????λ?????????λ??????У?????)?????????С?????????????????????α?????2003??????Bam??????????????????л???????????????????????(AZO)???λ???α???????ο???????????????????????α????????????????????????MAI???λ???α????????????Ч???AZO??????????????????α??????л???????????????????????????????????3??????????????????2.7??4.1??3.2 cm??     

����BDS��GPS���ܵ��㶨λ���춥�������ӳٹ��ƱȽ�

??BDS??GPS?????????????￡????????IGS??MGEX???????????????????CODE?o?GPS?????WHIGG?????BDS?????????????GPS??????BDS??????????????????о??????λ??PPP??????????????????????????????????????з?????????????????IGS???????????????????GPS???????????????????????????????????侫???mm????BDS?????????GPS????????侫??????2??cm??GPS??BDS???????????GPS????????????