Coordination Group for Meteorological Satellites - CGMS
Proposed CGMS High
Level Priority Plan (HLPP)
2015-2019
Presented to CGMS-43 WG II, agenda item WGII/11
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Overview
• Status of implementation of HLPP targets
overseen by WG II
– Proposed assignment of responsibilities for targets
to ISWGS, GSICS and WG II respectively
• Proposed revisions to HLPP relevant to WG II
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
HLPP: Summary of intersessional work,
relevant to WG II
IPWG
• At its meeting 17-21 Nov 2014, IPWG discussed the HLPP and the status of its implementation
• IPWG proposed a number of revisions to the HLPP and raised a number of issues relevant to the
HLPP.
IWWG
• At its meeting 16-20 June 2014 IWWG discussed the HLPP and the status of its implementation.
• IWWG did not propose further revisions to the HLPP document itself, but it did however agree
actions to strengthen the implementation of priorities related to wind matters.
IROWG
• At its meeting 16-22 April, IROWG did not provide specific inputs to the HLPP implementation or
revision.
GSICS
• At its recent meeting GSICS Executive Panel reviewed that status of implementation of the GSICS
related targets. The status is reflected below.
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
Status is provided based on information from the ISWGs that have met since last
CGMS. A complete status of implementation of the proposed targets will be gradually
established by WG-II, the ISWGs (during their cycle) and the GSICS project.
3.1
Establish within GSICS a fully consistent calibration of
relevant satellite instruments across CGMS agencies,
recognising the importance of collaboration between
operational and research CGMS agencies;
Overall excellent progress, more and
more CGMS members are becoming
embers of GSICS
3.1.1 Establish a consistent inter-calibration for thermal IR
channels using hyper-spectral sounders as reference.
The implementation will be done successively by the
individual satellite operators.
GSICS
3.1.2 Establish a consistent inter-calibration for solar
channels using instruments with adequate in-orbit
calibration and vicarious methods as reference. The
implementation will be done successively by the
individual satellite operators.
GSICS
CGMS-43-CGMS-WP-29, 17 May 2015
IASI is the reference with redundancy in
the system (two IASIs, CrIS and AIRS).
Implementation is ongoing across many
CGMS members. Successive
implementation is being done.
Mainly MODIS is used as reference with
DCC as transfer function. The Lunar
calibration is progressing as well (re
Lunar calibration workshop). Vicarious
cal activities are ongoing as well. No
global reference defined, but many
agencies are moving forward.
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
Establish commonality in the derivation of satellite
products for global users where appropriate (e.g.,
through sharing of prototype algorithms);
3.2.1 Infer guidance from the ongoing inter-comparison of IWWG
AMV products for the future developments towards
consistent AMV products. Consider in the guidance
the future perspective of having the geostationary ring
populated with 16-channel imagers.
3.2
3.2.2 Establish a coherent development of volcanic ash
products (notably from current and future
geostationary imagers) utilising the JMA test-bed.
CGMS-43-CGMS-WP-29, 17 May 2015
WG II
Good overall progress
The Second AMV Intercomparison Study enables
an understanding of differences between AMV
products from different CGMS agencies and
leads/encourages the use/development of better
algorithms on the basis of common science. The
study will in particular address the effects of
- using different QI processes
- different target selection processes
using imagery from the newest satellite series
(Himawari 8/9 or GOESR),
Work is progressing in the context of the SCOPENWC project of JMA. A Volcanic Ash
Intercomparison Workshop will be held in JuneJuly 2015 in Madison US.
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
Establish commonality in the derivation of satellite
products for global users where appropriate (e.g.,
through sharing of prototype algorithms);
3.2.3 Develop best practices for retrieving cloud properties, ICWG
using the converging capabilities of next-generation
geostationary imagers
3.2.4 Using current and future geostationary imagers and
WG-II
sounders, generate and disseminate consistent basic
nowcasting products, initially in pilot areas, as
identified in SCOPE-Nowcasting.
3.2.5 To establish together with the user community a
ITWG
commonly agreed approach for retrieval of Principal
Component scores and associated parameters from
hyperspectral infrared data, minimizing information loss
including the mutually acceptable update strategy for
the principal component basis and to implement such
an approach in a coordinated manner.
3.2
CGMS-43-CGMS-WP-29, 17 May 2015
Feedback expected after next ICWG
No overall status from SCOPENowcasting was provided at CGMS-43
Feedback expected after next ITSC
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
Foster the continuous improvement of
products through validation and intercomparison through international working
groups and SCOPE-type mechanisms;
3.3.1 Apply the IPWG validation protocol to
IPWG
precipitation combination datasets generated
using multiple satellite and in-situ data sources
3.3.2 Increase the scientific and operational maturity WG II
of all SCOPE-CM phase 2 projects by 2015
3.3
3.3.3 Conduct an inter-comparison study between ITWG
the different methods to derive level 2 data
from infrared hyperspectral sounders,
recognising that there are several software
packages available utilizing AIRS/IASI/CrIS data.
CGMS-43-CGMS-WP-29, 17 May 2015
Validation work has not yet started, but it is
intended to initiate it in the coming year.
In progress. The main SCOPE-CM phase-2
objectives are to establish a systematic approach
to increase the sustainability (maturity) of CDR
generation capabilities and to establish the
structures for sustainable generation of
Fundamental and Thematic CDRs.
Feedback expected from ITSC
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
3.4
Harmonise the metadata (e.g. quality descriptors)
and format of products to be exchanged, in
adherence to the Service and Discovery metadata
standards formulated in the context of WIGOS/WIS;
3.4.1 Support WIGOS in the definition of harmonized
product metadata for satellite data and implement
for CGMS missions.
CGMS-42 agreed in principle to
start the dialogue with WIGOS,
but dialogue has not started
WG II Work has not started yet
3.4.2 Promote the product metadata standards within
WG II Work has not started yet
ocean communities, such as on SST, ocean colour,
ocean surface wind vectors and ocean surface
topography, to facilitate common data representation
and near-real time exchange. This must be done in
dialogue with the relevant CEOS Virtual
Constellations.
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
3.5
Maintain, enhance and improve the methods to
describe the error characteristics of satellite data
and products.
3.5.1 Establish a common vocabulary and methodology
with appropriate error propagation to include the
errors associated with validation data (e.g.
radiosonde temperature, water vapor and winds).
?
No progress reported. Should
be clarified which group leads
this effort
3.5.2 Address the error characteristics of wind products at IWWG
the next International Winds Workshop in 2014 and
provide a set of guidelines to be considered at the
operational centres.
Error characteristics is actively
considered by IWWG. Firm
guidelines are not yet
established.
3.5.3 Agree on standardized procedures to derive NedT ITWG
estimates for microwave sounders, and include such
estimates in the disseminated BUFR data.
Feedback expected after ITSC
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
3.6
Strengthen interaction with users in selected thematic
areas by establishing a close relation with them as
beta-testers and foster optimum use of satellite data.
3.6.1 Establish a sustained interaction with the operational
WG II Questionnaire on
Nowcasting communities with a view to fully utilise the
utilisation of geostationary
commonality of the future geostationary imagers and
satellite data for short-range
sounders.
NWP initiated by EUMETSAT
3.6.2 Report on the progress within the Nowcasting
WG II No specific progress reported
community toward the use of hyperspectral sounders
and work toward common products to serve the
requirements of the global community.
3.6.3 Integrate the use of precipitation datasets recognized by IPWG IPWG requests a discussion
IPWG in meteorological and hydrological applications,
with WG-II at CGMS-43 on
through dissemination of open visualization and analysis
this topic to further clarify
tools.
the intent and role for IPWG
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
3.7
Foster and support research regarding
enhanced radiative transfer capabilities,
recognising the paramount importance of
radiative transfer developments for satellite
products
3.7.1 Continue support for line-by-line (LBL) ITSC
reference model development and enhanced
characterization of spectroscopy to ensure
that product development teams and users of
level 1 data have access to the latest updates
in LBL forward modeling and the uncertainties
involved.
3.7.2 Perform validation and intercomparison of ITSC
LBL models/spectroscopy to assess the impact
of spectroscopic uncertainties and the
differences between line-by-line and fast
radiative transfer models.
CGMS-43-CGMS-WP-29, 17 May 2015
Gaps regarding LBL capabilities and
spectroscopy should be identified by
ITSC, but concrete actions should be
agreed at plenary level, as these will
involve support to research entities
outside CGMS
No progress noted
No progress noted
Coordination Group for Meteorological Satellites - CGMS
Status of Implementation of HLPP
Stimulate trade-off analyses for the development
of future passive sounding instruments
3.8.1 Conduct studies to trade off benefits of spectral, WG II?
radiometric, and spatial resolutions of infrared
sounders considering the noise floor due to
atmospheric noise and current uncertainties in
spectroscopy enabling improved spatial resolution
and increased number of field of views for next
generation CrIS and IASI.
3.8.2 Conduct studies to investigate the technical WG II?
feasibility to reduce the field of view sizes for future
microwave sounders without compromising noise
performance to keep in line with the spatial
resolution expected for future global NWP models.
3.8
CGMS-43-CGMS-WP-29, 17 May 2015
Unclear which group should be
leading these efforts
No specific progress
No specific progress
Coordination Group for Meteorological Satellites - CGMS
Revision of the HLPP for the period
2015-219
• Specific Proposals by IPWG have been included in
revision
– 3.3.1
Apply the IPWG validation protocol (as defined on
its web page) to precipitation combination datasets
generated using multiple satellite and in-situ data sources,
and expand the number of participating agencies to
broaden the validation domain
– 3.5.1
Establish a common vocabulary and methodology
with appropriate error propagation to include the errors
associated with validation data (e.g. radiosonde
temperature, water vapour, precipitation and winds).
• Some further issues raised by IPWG will be addressed
in WG III and WG I
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Revision of the HLPP for the period
2015-219
•
Further issues related to the HLPP as presented in the IPWG report should be
considered by WG II
– Section 3.1 – GSICS calibration across CGMS agency instruments (WG-II) –
IPWG would like to see a new item added to explicitly include MW window
and water vapor channels, critical to precipitation measurement
– Section 3.6.3 – Precipitation visualization tools (WG-II) – IPWG requests
discussion on this topic to further clarify the intent and role for IPWG
– Section 3.7 – Radiative transfer (WG-II) – IPWG recommends that a new
subsection be added – “Through coordination with ITWG and ICWG, continue
to improve microwave radiative transfer models to include complex surfaces
(e.g., snow, desert, etc.) and scattering atmospheres (e.g., frozen
hydrometeors) to support improved algorithm development for current and
future sensors.”
– Section 3.8 – Trade studies for passive sounding sensors (WG-II) – IPWG would
like to see this expanded to include both passive MW imagers and active MW
sensors.
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Revision of the HLPP for the period
2015-219
• IWWG
– No specific proposals for revision of the HLPP
• IROWG
– No specific proposals for revision of the HLPP
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
WG II should
• Consider and comment on the status of
implementation of the HLPP
• Consider the proposal for revision of the HLPP
to cover the period 2015-2019
CGMS-43-CGMS-WP-29, 17 May 2015
Coordination Group for Meteorological Satellites - CGMS
Thank you for your attention!
CGMS-43-CGMS-WP-29, 17 May 2015