18
CAVIAR Annual Meeting Cosener’s House,14 th Dec 2009 Page 1 Introduction • Calibration at NPL • Summer 2009 Flight campaign • Water vapour profiles • So preliminary data comparisons • Closing remarks

Introduction

  • Upload
    kalyca

  • View
    40

  • Download
    0

Tags:

Embed Size (px)

DESCRIPTION

Introduction. Calibration at NPL Summer 2009 Flight campaign Water vapour profiles So preliminary data comparisons Closing remarks. Radiometric calibration. At NPL 5 th - 15 th May 2009 Pre-campaign radiometric calibration with 2 external blackbody sources. NPLxBB and ICxBB . - PowerPoint PPT Presentation

Citation preview

Page 1: Introduction

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 1

Introduction

• Calibration at NPL• Summer 2009 Flight campaign• Water vapour profiles• So preliminary data comparisons• Closing remarks

Page 2: Introduction

Radiometric calibration

• At NPL 5th - 15th May 2009• Pre-campaign radiometric

calibration with 2 external blackbody sources. NPLxBB and ICxBB.

• Differential instrument, always measures the difference between two views.

• Temperatures viewed covers those found in flight.

• Additional runs with both external blackbodies at near-equal but cold temperatures, to isolate the instrument self-emission term.

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 2

Page 3: Introduction

Calibration run targets (2009)Run UW BB UW temp

(degC)DW BB DW temp

(degC)Internal BBshot/cold

A1 ICxBB -26.2 NPLxBB +5, -10, -25, -26.2

50/20

A2 ICxBB -31.8 NPLxBB +5, -10, -25,-31.8, -45, -55

60/amb

A3 ICxBB -32.4 NPLxBB +5, -10, -25, -32.4, -40, -55

amb/60(40)

B1 NPLxBB -10, -25, -40, -41.2, -42.2

ICxBB -41.2 50/20

B2 NPLxBB +5 ICxBB -44 60/amb

B3 NPLxBB +5, -10, -25, -40, -55

ICxBB -40 70/40

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 3

Page 4: Introduction

Summer flying 2009

• 13 July – 12 August 2009• Based out of Basel, Switzerland• 38.5hrs over 9 flights

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 4

Page 5: Introduction

CAVIAR 2008 Flight scheduleDate Flight Meteorology TAFTS performance

02/07/09 B465 N/A Test flight

16/07/09 B466 Clear (partial MC) R6-10 excellent; R1-6, 11,12 good

19/07/09 B467* Some thin Ci, ↓R3-7 R6-11.2 excellent; R1-5 good

20/07/09 B468 Night balloon launch R1,2,6,7 good; R3-5,8,9 ok

25/07/09 B469 StCu later in flight All runs excellent

26/07/09 B470* Occasional thin Ci All runs excellent

27/07/09 B471* Clear R1-4 excellent; R5,6 lost chs; No R7,8

29/07/09 B472 Clear R1-8 excellent; No R9-13 [ARIES]

01/08/09 B473 Clear Did not fly - Helium

04/08/09 B474* Partial MC R1-6 excellent; R7,8 lost chs; No R9-11

CAVIAR Annual MeetingCosener’s House,14th Dec 2009Page 5

MC – mountain cloud

Page 6: Introduction

B471 – 27/07/09

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 6Profile 7 ~18kft 09:58UTC

Profile 7 ~20kft 09:55UTC

Profile 2 ~16kft 07:40UTC

Page 7: Introduction

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 7

Elevation data from:http://srtm.csi.cgiar.org/

Page 8: Introduction

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 8

Page 9: Introduction

Water Vapour profiles

• Each group (IC, MO, Reading) involved in the flight campaign need to know the water vapour profile (and uncertainty) to compare with measured spectra.

• There are a number of sources of data; dropsonde, models, aircraft in-situ, satellites.

• Need to be compared and combined in an intelligent manner.

• All participants need to be using same profiles, for better cross-comparison…

• Workshop in week 30 Nov – 4 Dec 2009 @ IC involving SN, LT and PG

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 9

Page 10: Introduction

Measuring Water Vapour

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 10

Page 11: Introduction

Measuring Water Vapour

CAVIAR Annual MeetingCosener’s House,15th Dec 2009

Page 11

Page 12: Introduction

Profile philosophy

• Dropsonde are most accurate measures of profile, but only occasional snap-shot.

• Aircraft in-situ measurements from frost-point hygrometer, fluorescence WV spectrometer and Nevzorov TWC, all have different response times and measurement characteristics. Provide profiles in ascents/descents and measure of variation along runs.

• ECMWF analysis model fields – 0.25° grid assimilating all available data, but produced via spherical harmonics scheme – limited detail.

• Swiss Met model• GPS water vapour from JFJ• JFJ surface measurements• Satellite data (SEVIRI, IASI, AIRS etc)• Microwave (MARSS) instrument on FAAM-146• And radiometer data itself – shouldn’t be forgotten.• So how best to combine…

CAVIAR flight debrief (2009)Reading 16th November 2009

Page 12

Page 13: Introduction

Profile philosophy

Dropsondes are an accurate snap-shot, ECMWF, even if biased, should give good idea of trend, temporally and spatially. Aircraft in-situ measurements as first check of this.

Initially:1) define a few points fixed points, representative of segments of the

run (Camborne – Ocean N, Camborne, Ocean S). In this case, NW-SE runs, fortuitously follows ECMWF grid diagonal.

2) Sonde drop locations, naturally cluster about these points – so attribute dropsonde data to these locations.

3) Look at time of ECMWF fields analysis/forecast, dropsonde launch and aircraft run pass. Interpolate the ECMWF fields in time between these epochs, and produce a shift in T(p),q(p) from change in ECMF field.

So, any good?

CAVIAR flight debrief (2009)Reading 16th November 2009

Page 13

Page 14: Introduction

Time variance of assimilation

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 14

Page 15: Introduction

Comparison of ECMWF correct profiles

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 15

Page 16: Introduction

B471 Run 1

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 16

Page 17: Introduction

B471 Run 1

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 17

Page 18: Introduction

Closing remarks

• Overall a very successful campaign. Best yet in terms of weather, instrument performance (TAFTS and others) and number of flights

• But lots to do…– Concentrate on B471.– Continue analysis of dropsonde / Payerne radiosonde data. – Determine most appropriate profile for each run – last week.– Calibrate B471 runs 2,3,4,5 and 6.– Compare with ARIES data (in cross-over region).– Uncertainty budget calculations with updated ε and ΔT from NPL-based

calibration work.– LBL code updates – HITRAN2008 / Tennyson list.– Make continuum assessment, then validate with other flights.

CAVIAR Annual MeetingCosener’s House,14th Dec 2009

Page 18


Introduction€¦ · Introduction ThisdocumentprovidesinformationabouttheIOSXEsoftwarereleasefortheCiscoNCS4201andCisco …

Introduction€¦ · Introduction ThisdocumentprovidesinformationabouttheIOSXEsoftwarereleasefortheCiscoNCS4201andCisco …

Documents
Introduction - daks2k3a4ib2z.cloudfront.net€¦ · Introduction Establishedin1974MarbleHillFireplacesofferoneofthelargestandmostcomprehensiveselectionsof …

Introduction - daks2k3a4ib2z.cloudfront.net€¦ · Introduction Establishedin1974MarbleHillFireplacesofferoneofthelargestandmostcomprehensiveselectionsof …

Documents
URBAN STREAM REHABILITATION. INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES

URBAN STREAM REHABILITATION. INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES

Documents
Introduction Section I: Introduction

Introduction Section I: Introduction

Documents
Introduction to Logic Introduction

Introduction to Logic Introduction

Documents
Introduction to Transducers, Introduction to Transducers ... on... · Introduction to Transducers, Introduction to Transducers, Sensors and ActuatorsSensors and Actuators Introduction

Introduction to Transducers, Introduction to Transducers ... on... · Introduction to Transducers, Introduction to Transducers, Sensors and ActuatorsSensors and Actuators Introduction

Documents
Introduction and Thesis Introduction - …...1 Introduction and Thesis Introduction: The introduction relates the topic to the main point of the essay. The introduction is composed

Introduction and Thesis Introduction - …...1 Introduction and Thesis Introduction: The introduction relates the topic to the main point of the essay. The introduction is composed

Documents
VisionaryScancombinesarichsetofqualitycontrolandproductivi ... · Introduction Introduction VisionaryScancombinesarichsetofqualitycontrolandproductivityfeatureswithasimpleinterfacedesignedspecificallyforscanningandcodingdepositionexhib-

VisionaryScancombinesarichsetofqualitycontrolandproductivi ... · Introduction Introduction VisionaryScancombinesarichsetofqualitycontrolandproductivityfeatureswithasimpleinterfacedesignedspecificallyforscanningandcodingdepositionexhib-

Documents
Introduction and Welcome€¦ · Introduction and Welcome Introduction 4

Introduction and Welcome€¦ · Introduction and Welcome Introduction 4

Documents
INTRODUCTION SPECIFICATIONS INTRODUCTION

INTRODUCTION SPECIFICATIONS INTRODUCTION

Documents
Topics Introduction 1 / 3 Introduction 2 / 3 Introduction 3 / 3

Topics Introduction 1 / 3 Introduction 2 / 3 Introduction 3 / 3

Documents
introduzione | introduction | einleitung | introduction · introduzione | introduction | einleitung | introduction | introducción | введе́ние | wstęp en Description Operation

introduzione | introduction | einleitung | introduction · introduzione | introduction | einleitung | introduction | introducción | введе́ние | wstęp en Description Operation

Documents
1 Introduction INTRODUCTION - MICROCSB

1 Introduction INTRODUCTION - MICROCSB

Documents
Introduction Introduction Introduction Introduction

Introduction Introduction Introduction Introduction

Documents
Introduction 1. Introduction

Introduction 1. Introduction

Documents
Introduction | Introduction | Millennium Serials · 2018. 4. 17. · MARC Display | Print | Introduction | Millennium Serials INTRODUCTION Introduction This tutorial introduces the

Introduction | Introduction | Millennium Serials · 2018. 4. 17. · MARC Display | Print | Introduction | Millennium Serials INTRODUCTION Introduction This tutorial introduces the

Documents
Systems Analysis I introduction I introduction. 2Systems Analysis - Introduction Contents Introduction Introduction 3 classic phases 3 classic phases

Systems Analysis I introduction I introduction. 2Systems Analysis - Introduction Contents Introduction Introduction 3 classic phases 3 classic phases

Documents
Module: Introduction...Module: Introduction Page: Introduction CC0.1 Introduction Please give a general description and introduction to your organization. Providing electrical, hydraulic

Module: Introduction...Module: Introduction Page: Introduction CC0.1 Introduction Please give a general description and introduction to your organization. Providing electrical, hydraulic

Documents
Introduction to Elasticsearch and Logstash. - KIT · PDF fileOutline 1 Introduction 2 Logstash Introduction 3 Elasticsearch Introduction 4 Conclusions Introduction Logstash ElasticsearchConclusions

Introduction to Elasticsearch and Logstash. - KIT · PDF fileOutline 1 Introduction 2 Logstash Introduction 3 Elasticsearch Introduction 4 Conclusions Introduction Logstash ElasticsearchConclusions

Documents
An Introduction to NSAn Introduction to NS2An Introduction ...teerawat/publications/NS2/02-NS2.pdf · An Introduction to NSAn Introduction to NS2An Introduction to NS2 Textbook: T

An Introduction to NSAn Introduction to NS2An Introduction ...teerawat/publications/NS2/02-NS2.pdf · An Introduction to NSAn Introduction to NS2An Introduction to NS2 Textbook: T

Documents
R as a Web Service Introduction Introduction Introduction

R as a Web Service Introduction Introduction Introduction

Documents
1 Introduction t 1. Introduction to Nanotechnology - UFAMhome.ufam.edu.br/berti/nanomateriais/Introduction to Nanotechnology... · Introduction t 1. Introduction to Nanotechnology

1 Introduction t 1. Introduction to Nanotechnology - UFAMhome.ufam.edu.br/berti/nanomateriais/Introduction to Nanotechnology... · Introduction t 1. Introduction to Nanotechnology

Documents
Optimisation des Requêtes. Introduction Introduction

Optimisation des Requêtes. Introduction Introduction

Documents
Introduction: Definition Introduction: Philosophy

Introduction: Definition Introduction: Philosophy

Documents
voip-iptel-introduction-SRK1.ppt voip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-ip

voip-iptel-introduction-SRK1.ppt voip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-ip

Documents
General introduction 1.1 Introduction

General introduction 1.1 Introduction

Documents
Introduction to introduction to introduction to … Optimization

Introduction to introduction to introduction to … Optimization

Documents
Introduction Introduction (ctnd.)

Introduction Introduction (ctnd.)

Documents
1. Introduction 1. Introduction 1. Introduction 1 ... · Introduction 1. Introduction 1. Introduction 1. Introduction 6061B0242401. The Phone Screen From the Phone screen, you can

1. Introduction 1. Introduction 1. Introduction 1 ... · Introduction 1. Introduction 1. Introduction 1. Introduction 6061B0242401. The Phone Screen From the Phone screen, you can

Documents
An Introduction to NSAn Introduction to NS2An Introduction

An Introduction to NSAn Introduction to NS2An Introduction

Documents