HIMAWARI-8/9 CLOUD, VOLCANIC ASH AND DUST PRODUCTS

In Response to Action 40.24

CGMS-41 / JMA-WP-06

Cloud Product

Step 1: Algorithm Decision- JMA/MSC has reviewed the algorithms of cloud products for

MSG by NWC SAF and for GOES-R by NOAA/NESDIS- JMA/MSC plans to create the new algorithm based on that of

NWC SAF- Some part of NOAA/NESDIS algorithm will be introducedStep 2: Coding Software- Cloud mask, cloud type/phase: almost completed- Cloud height: completedStep 3: Threshold Values- Preparation of Look Up Tables- Adjustment of threshold valuesStep 4: Validation

CGMS-41 2013/7/8-12 JMA-WP-06

Development of Cloud Product (Plan)

Examples

CGMS-41 2013/7/8-12 JMA-WP-06

RGB Image R: A0.64G: A0.86B: T11.2

1512UTC 7th Apr. 2012

Cloud Mask

CGMS-41 2013/7/8-12 JMA-WP-06

1512UTC 7th Apr. 2012

fractional

very high opaque

high opaque

medium opaque

low opaque

very low opaque

semi-trans p. thick

sem. meanly thick

semi-trans p. thin

Cloud Type Cloud Top Altitude (m)

Examples

Volcanic Ash Product

Development of Volcanic Ash Retrieval Software for Himawari-8/9 (Plan)

Step 1: Introducing EUMETSAT Volcanic Ash Retrieval software for MSG in JMA/MSC by March 2013

- JMA/MSC has installed software on the computer system and applied it to MTSAT-2 in collaboration with EUMETSAT

- The new volcanic ash product started to be provided for VAAC/Tokyo in pre-operation mode (March, 2013)

Step 2: Introducing NOAA/NESDIS Volcanic Ash Retrieval software in JMA/MSC in collaboration with NOAA/NESDIS

- JMA/MSC and NOAA/NESDIS had a technical meeting on the Volcanic Ash Retrieval algorithm and software

- Procedure to install NOAA/NESDIS software is ongoingStep 3: JMA/MSC will operate above two products in parallel and

provide to VAAC/Tokyo after Himawari-8 will be in operationStep 4: Further verification and improvements will be done in

cooperation with EUMETSAT and NOAA/NESDIS

CGMS-41 2013/7/8-12 JMA-WP-06

Progression Status of Volcanic Ash Product since Nov. 2012

• LUT from EUMETSAT (November, 2012)• First VA retrieval experiment for Mt. Shinmoe, Mt.

Bulusan and Mt. Tolbachik (December, 2012)• Technical meeting with EUMETSAT and UKMO

(28th January – 1st February, 2013)• Technical meeting with NOAA/NESDIS (25th

February – 1st March, 2013)• Volcanic ash product started to provide for

VAAC/Tokyo in pre-operation mode (March, 2013)• WMO 6th Volcanic Ash Science Workshop (11-15

March, 2013, Indonesia)CGMS-41 2013/7/8-12 JMA-WP-06

Examples

Mt. Sarychev 2009.6.14 0300UTC

Mt. Shinmoe 2011.1.27 0000UTC

Mt. Merapi 2010.11.11 2000UTC

Mt. Bulusan 2011.2.21 0400UTC

CGMS-41 2013/7/8-12 JMA-WP-06

Dust Product

Development of Dust Product (Plan)

• Product will be developed for the purpose of monitoring of Asian dust

• Two different approaches, one from visible and near-infrared data and another one from infrared data, will be taken for the product

• Algorithm for visible data product has been developed based on NOAA/NESDIS Aerosol algorithm

• NOAA/NESDIS volcanic ash algorithm will be applied for the product from infrared data

CGMS-41 2013/7/8-12 JMA-WP-06

Progress on Development of Visible Data Based Dust Product

• Reviewed ATBD for NOAA/NESDIS aerosol product (2012.4-6)

• Designed LUT for aerosol retrieval and generated 1st version of LUT (2012.8-11)

• Experimental retrieval from MODIS L1B data (2012.12)• Mie scattering and radiative transfer calculation tools for

LUT calculation developed by JMA/MRI are being installed to JMA/MSC computer system

• Algorithm and/or LUT will be adjusted using Himawari-8 data after the data becomes available

CGMS-41 2013/7/8-12 JMA-WP-06

Example (Optical Depth, 01 May 2011)

CGMS-41 2013/7/8-12 JMA-WP-06

New Algorithm with MODIS/Terra (0430 UTC), without cloud mask

Current Algorithm with MTSAT-2 (0500 UTC)

Plan for infrared based Dust Product

• MSC is planning to use NOAA/NESDIS volcanic ash algorithm for aerosol Product

• Development will be started after MSC received the NOAA/NESDIS software for volcanic ash

• The β-ratio of Asian dust for the software will be calculated in advance by the end of this year

CGMS-41 2013/7/8-12 JMA-WP-06