Argo Monthly Report 2016/11

JCOMM in situ Observations Programme Support Centre December 2016
Argo Status
M. Belbéoch, Argo Technical Coordinator
belbeoch@jcommops.org
http://argo.jcommops.org

• Executive Summary
• Overview
• Implementation
• Data Flow
• Instrumentation
• Operations
• Biogeochemical Argo
• Deep Argo
• Communication
Outline

Argo is doing very well but some substantial gaps are anticipated and
challenges remain to optimize and sustain the array:
• Making deployment strategy and planning more cooperative
• Address the upcoming gaps in the Pacific Ocean
• Distribute excess of North Atlantic Ocean floats in Gulf Stream, South
Atlantic and possibly in South West Indian Ocean
• Making data distribution more automatic (and reach 4000 by AST#18)
• Keep delayed mode data distribution on track
We can note additionally that:
• Iridium is now the major telecommunication system on use
• All float models do not perform equally
Open questions for next AST:
Could more AST members commit to chartered ship time for 2017?
Executive Summary

Overview

Implementation – Activity
• Global array optimal (quantitatively) – on light increase
• Atlantic Ocean optimal - stable
• Indian Ocean optimal - 10 % increase
• Pacific Ocean lightly optimal - light decrease
• Southern Ocean half implemented - stable
Performance Indicators

Implementation – Activity (%)
(%)

Implementation – Intensity of deployments
(this KPI had some errors – now corrected)
• Global array deployments slightly low – continued decrease for a year
• Atlantic Ocean optimal (over seeding in North Atlantic)
• Pacific Ocean too low – continued decrease for a year
• Indian Ocean over seeding – was required
• Southern Ocean too low

Implementation – Intensity of deployments (%)
(%)

Yearly Deployments
Deployment nb is appropriate but on decrease.
Nbofdeployment

Yearly Deployments
North Atlantic:
Target = 83 / year
Average last three years = 135 (70% over seeding)
Nbofdeployment

Implementation – Data Spatial Coverage
Monthly
• Global: good – 48% of the array is well sampled - stable
• Atlantic Ocean - good
• Pacific Ocean - good.
• Indian Ocean - good
• Southern Ocean – poor (should improve soon with summer season)
Key Performance Indicators

Implementation – Data Spatial Coverage
Monthly
Key Performance Indicators
(%)

National contributions
3915 fully operational floats

Networks
Argo Equivalent (10%), Argo BGC (7.5%), Argo Deep (0.6%).

Spatial Coverage
Latest monthly observations (gaps in blue).

Network Growth
Network evolution – light increase
Distinct floats distributing observations at GDACs (monthly).
(nb)

Implementation

Implementation
Distribution of operational floats by country

Implementation
Operational floats evolution, by national contribution.
(nb)

Implementation
Operational floats evolution, by national contribution.
Zoom (no USA).
(nb)

Implementation
Simple float density as of 2016-12-01, 6°x6°.

Implementation
Age = (Latest Observation date – Deployment date).

Implementation
Old (red) / young (blue) spatial clusters.

Pacific Ocean
Operational Floats > 4 years removed
This is how the Pacific Ocean could look like in a couple of years from now …

Implementation
Float density: decimal floats, weighted by their probability to survive one
year

Implementation
Please update your deployment plans for 2017 before AST meeting

Implementation
Simple density including deployment plans (to optimize dark green zones).

Data Flow

Data Flow
A month of observations (at IFREMER) by DAC.

Data flow
A month of observations (at IFREMER), distribution by DAC.

Delivery on decrease.
Timeliness improving (+5%)

Data Delivery
Please release data from pending floats (~100)
in order to reach 4000 operational units by next AST meeting 2017- 03
http://www.jcommops.org/ftp/Argo/Doc/2016-PENDING.csv
Floats registered
Floats registered and active
PROGRAM #PENDING FLOATS
Argo UK 22
Argo PMEL 15
Argo UK Bio 12
MOCCA-EU 9
BioArgo UMaine 8
Argo ITALY 6
Argo INDIA 5
Argo WHOI 5
Argo BSH 4
Argo eq. NAVOCEANO 4
MOCCA-NETH 4
Argo eq. CHINA 3
Argo NIMS/KMA 3
Argo SIO 3
NAOS-Canada 3
NAOS-France 2
Argo BRAZIL Navy 1
Argo CHINA 1
Coriolis 1
Coriolis-BIOArgo 1
Coriolis-OVIDE 1
Coriolis-remOcean eq. 1
TOTAL 114

Data Flow
Confirm float status (e.g. deployment failure) or enable data distribution.

Data Flow
Delays at IFREMER

Data Flow
Delays at NRL-MRY

Data Flow
GDACs Delays (average), by DAC.
November 2016.

Data Flow
GDACs Delays (median), by DAC.
November 2016

Data Flow
GDACs Delays on target (24h), by DAC.
November 2016

Data Flow
A view on sampling levels.

Data Flow
Lower quality PSAL profiles.

Data Flow
Lower quality TEMP profiles.

Data Flow
Delayed-Mode QC Achieved/DMQC_ELIGIBLE ratio = 68%.

Data Flow
Delayed-Mode QC stable over last months (68%)
(%)

Instrumentation

Instrumentation
Distribution of operational floats by model

Instrumentation
Models evolution.

Instrumentation
Models evolution (nb operational floats by month)
(nb)

Instrumentation
Models evolution (nb deployments by year)
(nb)

Instrumentation
51% Iridium, 48% Argos.

Instrumentation
Iridium is today the major telecommunication system used on floats

Reliability
By float model, floats deployed since 2005

Target: 75 profiles distributed

Target: 150 profiles distributed

75 profiles distributed (top): 73% stable
150 profiles distributed (bottom): 39% on decrease over last months

5. Operations

History
Ocean is well shared by Argo partners.
But do we see still too much color patches ?

History
Regions sometimes unnecessarily over sampled and regions never visited.
Logistics sometimes drive implementation

History
Regions never visited show however some observations from floats that
drifted in, but still show some regular gaps.

2016 Ships
Kaharoa is the ship of the year (Nb deployments)

Biogeochemical Argo

Biogeochemical Argo needs to double the effort to reach its target and
implement the full package (6 sensors) on all floats.
IMPLEMENTATION
• Activity stabilizing at 30%
• Intensity of deployments 45% to be doubled
• 1000th BGC float will be soon deployed …
DATA FLOW
• Optimize real-time distribution and delays, in cooperation with existing
Argo National Data Centres
• Metadata improving (SENSOR_MODEL critical to track capabilities)
INSTRUMENTATION
• Sensor diversity progressing (data availability by sensor to be checked)
• But 45% of the network is Oxygen only
• Life expectancy of BGC floats is lower than others (2.5 years in 2015 vs
4.8)
Executive Summary

Biogeochemical Argo

National Contributions
Some key Argo national programmes are missing

Biogeochemical Argo
Growth of operational floats
(monthly distinct floats at GDACs)
(nb)

Growth of operational floats
(monthly distinct floats at GDACs)
(nb)

Yearly deployments
(nb)

Sensor Types

Oxygen
stable

Fluorometer
+5

Scatterometer
+8

Radiometer
+2

pH
+4

Nitrate
+46

Life Expectancy
A BGC float deployed in 2015 has a 2.5 years life expectancy

Deep Argo

25 operational floats

National contributions
Yearly deployments
(nb)

Planning 2017

Data flow
More than 2000 deep profiles available

Communication

Website News
Notify tens of floats in a couple of minutes through metdata upload (CSV, US
meta, netCDF). Immediate update on interactive map.
Overwrite existing records.

Website News
Search, Inspect floats by location status (iced/beached)
Updated at each new location comparing with land and monthly ice extent polygons.
Tag a float for recovery.

Website News
New sections for Links and Documents

Website News
Include any set of monthly maps or KPIs on your own website.
Can be done for interactive map and Platform Inspect page too.

Website News
Access float models statistics

Website News
Compare KPIs for different basin on same graph

Website news
Addition of Scripps Argo atlas in interactive map. First tests.

Best wishes for 2017 from JCOMMOPS!

Argo Monthly Report 2016/11

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