Advanced Technology Microwave Sounder

Advanced Technology Microwave Sounder (ATMS) bụ radiometer microwave nke nwéré ọwa iri abụọ na abụọ màkà nyocha nkè ikuku na elu ụwa. Ọ bụ ónyé nọchiri Advanced Microwave Sounding Unit (AMSU) na satellite ihu igwe NOAA. na-efe ụgbọelu ATMS na Suomi NPP na Joint Polar Satellite System .

Ngwa

Ana-ejikọta ọnụọgụ ATMS n'ime ụdị amụma ihu igwe ọnụọgụ na profaịlụ ikuku nke jikọtara site na njikọta nke ATMS na Cross-track Infrared Sounder n'otu satellites ahụ bàrà uru màkà ọnọdụ ihu igwe synoptic. , ATMS na-aga n'ihu na ndekọ sitere na ngwá ọrụ ndị bu ya ụzọ MSU na AMSU nke nha na 5-mm band nké oxygen màkà nlekota nke ọnọdụ okpomọkụ ikuku.

Ihe ndị e ji mara ngwá egwú

Ọwa niile dị n'ime otu unit, n'adịghị ka AMSU nke nwéré ngwá ọrụ abụọ (AMSU-A na AMSU-B).Anten radiometer na-enyocha n'okpuru satellite site na nadir, na polarization vector ya na-agbagharị na oghere nyocha. Ọnụ ọgụgụ nnwale -emezu Ụkpụrụ Nyquist màkà ọwa otu ruo iri na isii; ya mèrè, ihe oyiyi ndị sitere na data anaghị ahapụ. Otú dị, ihe oyiyi ATMS na-egosipụta akara, nkè a na-ekwu na ọ bụ mgbanwe mmeri (1 / f mkpọtụ), [1] nke enwere ike iwepụ site na nzacha data ahụ. Tebụl 1 depụtara ụfọdụ njirimara nke ọwa ATMS.

Tebụl 1 ATMS Radiometric njirimara

Ọnụ ọgụgụ nke ọwa	Passband Center Frequency (GHz)	Polarization nso nadir	Ọnụ ọgụgụ nke akara ngosi	K" data-linkid="36" href="./Noise-equivalent_temperature" id="mwPQ" rel="mw:WikiLink" title="Noise-equivalent temperature">NEDT (K) Radiometric Resolution	Ọrụ Ukwu
1	23.8	kwụ ọtọ	1	0.25	Mmiri Mmiri Mmị
2	31.4	kwụ ọtọ	1	0.31	Mmiri Mmiri Mmị
3	50.3	n'elu	1	0.37	Mmiri na-asọba n'elu ala
4	51.76	n'elu	1	0.28	Okpomọkụ nke Tropospheric
5	52.8	n'elu	1	0.28	Okpomọkụ nke Tropospheric
6	53.596 ± 0.115	n'elu	2	0.29	Okpomọkụ nke Tropospheric
7	54.4	n'elu	1	0.27	Okpomọkụ nke Tropospheric
8	54.94	n'elu	1	0.27	Okpomọkụ dị nso na Tropopause
9	55.5	n'elu	1	0.29	Okpomọkụ dị nso na Tropopause
10	57.290344	n'elu	1	0.43	Okpomọkụ nke Stratosphere
11	57.290344 ± 0.217	n'elu	2	0.56	Okpomọkụ nke Stratosphere
12	57.290344 ± 0.3222 ± 0.048	n'elu	4	0.59	Okpomọkụ nke Stratosphere
13	57.290344 ± 0.3222 ± 0.022	n'elu	4	0.86	Okpomọkụ nke Stratosphere
14	57.290344 ± 0.3222 ± 0.010	n'elu	4	1.23	Okpomọkụ nke Stratosphere
15	57.290344 ± 0.3222 ± 0.0045	n'elu	4	1.95	Okpomọkụ nke Stratosphere
16	88.2	kwụ ọtọ	1	0.29	Igwe ojii/Snow
17	165.5	n'elu	1	0.46	Mmiri Mmiri Na-ekpo ọkụ
18	183.31 ± 7.0	n'elu	2	0.38	Mmiri Mmiri Na-ekpo ọkụ
19	183.31 ± 4.5	n'elu	2	0.46	Mmiri Mmiri Na-ekpo ọkụ
20	183.31 ± 3.0	n'elu	2	0.54	Mmiri Mmiri Na-ekpo ọkụ
21	183.31 ± 1.8	n'elu	2	0.59	Mmiri Mmiri Na-ekpo ọkụ
22	183.31 ± 1.0	n'elu	2	0.73	Mmiri Mmiri Na-ekpo ọkụ

Ihe edeturu

• "Vertical polarization near nadir" (nké a makwaara dị ka quasi-vertical) pụtara na màkà nhazi nyocha a, E-vector dị n'otu akụkụ na ntụziaka nyocha mgbè antenna na-ele nadir; "horizontal polarization" pụtara ntụziaka orthogonal.
• A tụrụ uru NEDT na mpaghara Suomi-NPP. Nkebi abụọ sochirinụ gosipụtara arụmọrụ mkpọtụ yiri nke ahụ ọ bụ nke ka mmá.

Njikọ mpụga

• https://www.jpss.noaa.gov/atms.html