{"id":200,"date":"2017-11-05T15:07:44","date_gmt":"2017-11-05T15:07:44","guid":{"rendered":"https:\/\/www.essl.org\/cwg-satellite-guidance\/?page_id=200"},"modified":"2018-04-05T09:04:29","modified_gmt":"2018-04-05T09:04:29","slug":"metop-iasi-profiles","status":"publish","type":"page","link":"https:\/\/www.essl.org\/cwg-satellite-guidance\/metop-iasi-profiles\/","title":{"rendered":"METOP IASI Profiles"},"content":{"rendered":"

METOP IASI Profiles<\/h1>\n

Operationally produced by EUMETSAT<\/p>\n

\n

Application:<\/h2>\n

Detection of possible unstable areas through satellite based temperature and humidity profiles in pre-convective environment and shallow cloudy areas.<\/p>\n

The IASI sounding products include Temperature and Humidity<\/strong> profiles at footprint resolution in nearly \u201call-sky\u201d<\/strong> conditions retrieved from IASI and collocated microwave (AMSU\/MHS) measurements with a statistical method, the PWLR\u00b3 (Piece-Wise Linear Regression). They are provided with surface parameters and quality indicators<\/strong>. In cloud-free pixels, the products are completed with profiles retrieved with an Optimal Estimation Method (OEM) exploiting IASI only. These are provided with full error estimate covariance matrix.<\/p>\n

Limitations:<\/h2>\n

4 overpasses per day at mid- and lower latitudes, including Metop-A and Metop-B.<\/p>\n

Pros and cons:<\/h2>\n

\u2713 Good for following the deviation from the NWP model\u00a0vertical\u00a0 profiles<\/span><\/p>\n

\u2713 Available also during night-time\u00a0and over many cloudy areas<\/span><\/p>\n

\u2713 Regional EARS-IASI L2 service<\/strong>: combined statistical\u00a0MW+IR products within\u00a030\u2019\u00a0from sensing<\/strong>, in HDF5 files<\/span><\/p>\n

\u2713 Available over the whole globe<\/span><\/p>\n

X\u00a0global NRT dissemination: BUFR format, timeliness ~1.5h<\/span><\/p>\n<\/div><\/div>\n

\n

\"\"<\/a><\/p>\n

Accessibility and Dissemination:<\/h2>\n
    \n
  1. Global products (PWLR3 and OEM) disseminated NRT via EumetCast<\/a> \u2013 and GTS in BUFR format.<\/li>\n
  2. Regional products (PWLR3 microwave + infrared) within 30\u2019 via EumetCast in HDF5 format for EARS-IASI coverage.<\/span><\/li>\n
  3. From the Data Centre archive, in native format<\/span><\/li>\n<\/ol>\n

    Additional Information:<\/h2>\n

    Validation reports<\/a><\/p>\n

    Product Generation Specification <\/a><\/p>\n

    Product User Guide (Regional EARS-IASI L2 section 5.2.2 )<\/a><\/p>\n

    Product Format Specifications <\/a><\/p>\n

    Validation papers:<\/strong><\/p>\n

    Roman et al., \u201cA global assessment of NASA AIRS v6 and EUMETSAT IASI v6 precipitable water vapor using ground-based GPS SuomiNet stations\u201d, JGR 2016, DOI: 10.1002\/2016JD024806<\/p>\n

    Boylan et al., \u201cIdentification and intercomparison of surface-based inversions over Antarctica from IASI, ERA-Interim, and Concordiasi dropsonde data\u201d, JGR 2016<\/p>\n

    Feltz et al., \u201cAssessment of NOAA NUCAPS upper air temperature profiles using COSMIC GPS radio occultation and ARM radiosondes\u201d, JGR 2017, DOI: 10.1002\/2017JD026504<\/p>\n<\/div><\/div>

    <\/div>\n

     <\/p>\n

    Overview prepared by Thomas August, EUMETSAT,\u00a0V.\u00a02017<\/p>\n

     <\/p>\n

    <\u00a0 HRW Product<\/a> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Home<\/a>\u00a0<\/strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Cloud Type<\/a> ><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

    METOP IASI Profiles Operationally produced by EUMETSAT   Overview prepared by Thomas August, EUMETSAT,\u00a0V.\u00a02017   <\u00a0 HRW Product \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Home\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Cloud Type ><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-200","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/pages\/200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/comments?post=200"}],"version-history":[{"count":64,"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/pages\/200\/revisions"}],"predecessor-version":[{"id":1346,"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/pages\/200\/revisions\/1346"}],"wp:attachment":[{"href":"https:\/\/www.essl.org\/cwg-satellite-guidance\/wp-json\/wp\/v2\/media?parent=200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}